Thanks Andy for spending the time to create this amazing video showcasing my Interface boards. I would mention that there is a standalone solution for single BMS use, and there is a Multi-BMS solution, which has different hardware and firmware, configured as 1 master and upto 9 slaves. You could upgrade from standalone to Multi-BMS if in the future if you add additional BMS and battery packs. Also please note these interface boards only support CAN bus, so your inverter needs to support Pylon over CAN bus NOT Pylon over RS485.

@OpenSolarEnergy

7 ай бұрын

Hi Peter, Good job 👍 When will version 1.16 be released?

@uksa007

7 ай бұрын

@@OpenSolarEnergy Hi, V1.23 is installed with the new DCDC Interface board.

@user-gj6eb9nu1l

7 ай бұрын

@uksa007 - Please explain the Total cost of a stand alone system (single BMS) vs the cost of a Muti-BMS system. Where to purchase each and what all is involved. As many others, I click on a link and that is for the price of what? the master? The slave? Much more detail in the listing needs to be provided. Individuals such as Myself have muti-BMS's, I have 5 BMS's, - I would need one Master and 4 slaves. Where is that in your price listing? I see where I would have to subscribe for code updates, is that also true to get a Multi-BMS solution? Do I have to maintain a subscription for the Mut-=BMS Solution? Are each device used as a mater and slave? Different device? Master device has a CAN termination - so now there is confusion. If you read the comments you will see I am not alone, in this confusion. I believe this should be explained better, especially since you are charging people for your work, for Paetron and subscriptions. This really needs to be better explained, this is not clear at all. Since this is not clear, I have not purchased and I am sure multiple people are just as confused. So - to buy Stand alone go here: -to buy Muliti-BMS go here: EXPLAIN: What to buy - Master / Slave etc.. Subscriptions required or not....

@nzlithium1352

7 ай бұрын

@uksa007 what's the best way to get in touch to chat about some extra potential parameters, I have a specific task and regulation I'm trying to gain compliance in.

@BadIdea1123

7 ай бұрын

Hey bud, id be keen to get some of these, We have 3x jkbms across 90kwh of batteries. Have you got a link to where we could get them ?

Thanks for making this video Andy. This board looks like it would work perfectly for my setup.

This is an amazing practical device - its great that Peter & you colaberate

@OffGridGarageAustralia

7 ай бұрын

Yeah, I think it's a great device. I'll give it a go and see how it works over time....

Guys, let’s all do Andy a favor and send a Christmas gift to the best tech channel south of the equator !! ✅

@OffGridGarageAustralia

7 ай бұрын

Thanks so much, appreciate you ongoing support!

Wow, this makes the JK BMS even better, thanks for sharing. I'll give it a look.

@OffGridGarageAustralia

7 ай бұрын

Yeah, it really adds the charger functionality and communication every BMS should already have.

Esti nemaipomenit Andy!!! Te urmărește un fan din România...Grig felicitări!!!

What a great solution, Peter, thank you for this! 🎉

I have asked you this for within JK bms, I mean to control multiple JK bms from one CAN interface when you posted if there is any question need to be asked to JK folks, you told me it is unnecessary, I m glad you see the benefits. This is actually what I needed, I will order one immediately. Thanks for this great video again.

@OffGridGarageAustralia

7 ай бұрын

Thank you. We need to wait and see if JK is willing to implement such charging logic into their BMS. Update is hopefully coming soon...

All these years I've been watching, I never bought you a SPAT... sorry about that - I just did. I wish I could do more as you deserve it. I have learned tons of info from your videos. Thank you!

@OffGridGarageAustralia

7 ай бұрын

Thanks a lot Peter from Florida. Hope it's the right Peter...

Glad you are back! ✌

@OffGridGarageAustralia

7 ай бұрын

Yes💪

OK you have sold me Now Andy! Peter has done great work and i will join his Patreon tonight! This looks like a must have! 😁😁😊😊 for me.

@OffGridGarageAustralia

7 ай бұрын

See you over there...

Wow. This is what I have been waiting for.

@OffGridGarageAustralia

7 ай бұрын

Yep, me too! It ticks all the boxes.

Something unexpected I have learned from watching ohhhh all of your videos... is this is brand new tech. NO matter what the pretty web page says most manufacturers are making this up as they go along. As batteries and chargers and panels are not new I think many of us missed how cutting edge 'LARGE' lithium batteries really are. I admit to arguing as recently as last year they were not worth the money. Now I understand what a voltage graph tells you and how much "usable" energy is in them changes everything. Let alone daily discharge for ten years. Blessed be the OCD. If you can afford to hire one you always get the best work possible.

USD430 to control my 2 JK’s? Brilliant solution, absolutely, but I can’t do that. 150 would work. The Patreon rates are very high too. Best of luck tho! And thx to Andy for showing us the project!

@OffGridGarageAustralia

7 ай бұрын

No worries, I think it's cheaper than buying a new BMS which may not even work and certainly does not have the functionality.

Incredible What possibilities Thanks for this informative episode

@OffGridGarageAustralia

7 ай бұрын

Thank you.

Amazing what a Surprise for Christmas :)

Thanks Peter. Great board.

This is a really great solution😀

Thanks Andy, that looks Great (thanks Peter)👍🐸🐸🐸🐸

@OffGridGarageAustralia

7 ай бұрын

Thanks Wayne.

Nice product and explanation!

@OffGridGarageAustralia

7 ай бұрын

Thank you.

I’ve got JK BMS with 2A active balancer for 2 years now. No problem so far.

@gg-gn3re

7 ай бұрын

good for you

Enjoyed the video. Thanks for sharing

@OffGridGarageAustralia

6 ай бұрын

Thank you!

Some really good Sh!t! What an AMAZING solution. Nice job. Thanks for sharing

@OffGridGarageAustralia

6 ай бұрын

It is great!

Fantastic!

Nice. I also use esphome on a esp32 to monitor a Daly bms and also to control a heltec active balancer. I have it set to update the SOC to 100% on the Daly once the charge current goes down but the votage is on bulk.

Despite people complaining about the price, which from my point of view is absolutely feasable regarding all the research, development work that had to be done, all the administrative stuff following and the like. That little thingy seems to be an ingenious piece of work, gentlemen. Chapeau, dear Peter. And big thanks to Andy for presenting it that colorful.

@OffGridGarageAustralia

7 ай бұрын

Thanks a lot for your feedback. Not many appreciate the time and effort going into the development of such a piece of equipment.

@RFDarter

6 ай бұрын

​@@OffGridGarageAustraliaAndy, of course we do, but 90% of this product is not his work.

@testitester244

6 ай бұрын

@@RFDarter Honest question: Which part of the hardware- & software-development should not be done by him? (Myself being a software-developer with several decades of experience in different areas is really curious. I didn't reasearch the topic. Don't know, if anything was outsourced, but the overall work done in different regards is not to be underestimated.) Best regards

@RFDarter

6 ай бұрын

@@testitester244 The whole integration of ESPHome, the communication via TTL to the ESP32. His project was open source before, thats why people know what code he took from others. Once his project esd finished he closed the source and is now selling the work of others for a crazy amount of money. The only thing he might developed himself is the CAN comunication with the inversters.

Brilliant little electronics with the possibility of correct solar charging setup and combining multiple BMS into one setup, simple WiFi and Home Assistant connection with the possibility monitoring and setting from anywhere in the world with internet, just awesome ! On the other hand, it is very sad and disappointing that BMS manufacturers don't do this and don't listen to their customers and community at all.

@OffGridGarageAustralia

7 ай бұрын

This functionality should be implemented in all BMS, absolutely! It's only software...

This is something what I was thinking to do also for myself. My intention was to create esp board integration for HA , something like man in the middle attack, but I see someone did it even better and faster than me. Congratulations, good job!! hopefully we will be able to download just the source code, because hardware we can get very cheap from china. This esp board, integrated with HA, will solve 99% problems with solar installations, ie: run time when charge battery, when discharge, run different charging schemes depending of solar whether forecast , this will be open highway for many people.

@gg-gn3re

7 ай бұрын

The project "esphome-jk-bms" been around for years. This project is adding inverter communication to it.

Estupenda noticia Justo está semana estuve viendo su desarrollo, después de tu favorable comentario quiero una máster y dos esclavas

I have to agree with a lot of the other posters here.. It's a bad look to take an open source project with several contributors and then close it to try and make a profit. Fine.. Charge an arm and a leg for the hardware, but keep the software open source!

@OffGridGarageAustralia

5 ай бұрын

Instead of accusations, evidence please...

I love how you kept going through the rain.😂

@OffGridGarageAustralia

7 ай бұрын

Very hard and I had to stop. It gets really loud on the metal roof...😄

looks like a nice device! luckely I have the JK BMS :)

@OffGridGarageAustralia

7 ай бұрын

Yes, that will work! Most people will have the old style BMS anyway. This makes it perfect.

Time for some popcorn and favorite beverage of choice. 🎉

@OffGridGarageAustralia

7 ай бұрын

Yeah, nice!

Thanks for a great video Andy. It's a project that really needed some better documentation and you have well and truly done that. I've been using the diy version of this project for about a year now. I had to disable CAN comms to my inverter and use it as a display only cause the JK-BMS isn't that great at keeping track of the SoC % during winter when I don't always get a full charge. I'll be interested to see how it goes for you and others. My inverters (2 x Growatt SPF5000ES in parallel) would disconnect power as the settings are SoC % based when CAN communication is enabled and the BMS would sometimes go from ~25-30% to 0% in seconds if there's no charging happening. Now that it's summer, the parameters and switches have been clearly defined I might just enable CAN communication once again. thanks

@OffGridGarageAustralia

7 ай бұрын

Yeah, the SOC is still a problem with older JKs. If you order one now, they come with two new settings for 100% and 0%SOC as I showed in the Inverter BMS video.

@cpirius

6 ай бұрын

Hey, how do you get firmware for the DIY version? Do you have to join his patreon or something? I have all the parts I need to build one, but it seems like there's no way to get firmware without buying one of his new boards.

34:30 OMG ... That is amazing !!! This is top level stuff. Glad I ordered a B2A20S20P JK-BMS for my EVE LF280K cells. Amy at Qishou was a great help too ... Thanks Andy 👍

@OffGridGarageAustralia

7 ай бұрын

Yeah, loving this function and automatic integration. Just amazing...

It’s fantastic

@OffGridGarageAustralia

6 ай бұрын

It certainly is...

0:37 an ESP 32 😊 3:26 JK - simply the best.... 🏆 9:49 Peters concept looks like "Battery Safety Controller" Yeah, my guess was right 🤩. A Peter board is only for one JK instead up to the 10 pcs of JKs one BSC board can handle. Peter has some very nice software features and the HA Integration. BSC is more versatile with BMS and Balancers brands/types and has more hardware features like relays, control inputs and additional temperature sensors. I suggest the developers of Peter and BSC should stick together and share their knowledge to build the one and only and absolute perfect interface board.

@OffGridGarageAustralia

7 ай бұрын

I had a look at the BSC project and it seem to be similar to what the Peter board does. A collaboration between both developers could be in deed beneficial.

@Offgrid Garage, im using the Base BMS - 3 Packs - wrote a mini Script in NodeRed (VenusOS Large) Charge Voltage I can Set also Dynamic but my System goes to Float Voltage after the Diff Cell Voltages is under 0.005 Volt (also Dynamic) Float Voltage is also Dynamic and can set over the NodeRed Dashboard! No extra Hardware needed!

@OffGridGarageAustralia

7 ай бұрын

Great if you understand Node Red...

Good to see support for JBD/Overkill! I got JBD because of recent reported JK reliability issues. Maybe just firmware but the JBD looks fully dependable. Active balancing can be done outboard if even needed for a simple 4S. But I have Victron mppt and Victron AC charger so I can't see the need. Both of those give control over float mode and use intelligent cycling. Or am I missing something?

As always crazy video. It my heart stop when I was looking buying 2 of this Peter board…. I think it can be cheaper to buy the new jkbms…..

This is so cool ❤

@davidpenfold

7 ай бұрын

I'm not sure if Pylontech CAN protocol works with SMA 🤔

@uksa007

7 ай бұрын

@@davidpenfold Pylon says they are compatible with SI 4.4-M, SI 6.0-H, SI 8.0-H if that helps?

@davidpenfold

7 ай бұрын

@@uksa007 It does indeed! Thanks 🙏

Nice. I have been thinking about building. Something like this too with a couple of relay outputs too and mqtt intergration. Wish it was open source though.

This is fantastic! I was so excited watching the video I just directly went to buy a set of master plus slave board and it is 430 USD for those two boards. Such a pitty, but that is too much for me.. I'm unable to pay this for two ESP32 boards and a FW based on the open source project. I know - the development and all, but it is more than Cerbo GX, or both my BMS, or half of my battery.. I simply can't :)

@OffGridGarageAustralia

7 ай бұрын

Thanks for your feedback. If you have the Victron system, you can use their internal settings to achieve a good charging result as well.

@georgmuse

6 ай бұрын

@@OffGridGarageAustralia Thank you Andy, it is so nice you are reading the comments :) I just went to support your channel a little instead of buying this beautiful device. Also I become a patreon member of the project. Have a great day and greetings from Czech

@ukaszwisniewski7862

6 ай бұрын

I was in same situation ... for such price is cheaper to buy new JK smart BMS ... than this :(

This is a great example of how the community can achieve great things with simple things. Thanks for this video. Still, I think a follow-up video with practical examples might clarify the usefulness of this tool. What is the added value compared to the settings of the Victron MPPTs that can already do many of these things? What happens with charging if a heavy load suddenly needs to be supported? What happens if the master drops out? What is the influence of the loss of a slave? How stable is this? Does the measured voltage by JK-BMS differ much from the voltage of the shunt? In any case, I'm certainly looking forward to your video about the DIYBMS. It would have been my first choice, but I experienced the same problems with parts availability... And then I discovered your videos about the large battery bank.

@OffGridGarageAustralia

7 ай бұрын

Yes, there will be follow up videos coming. Just could not pack everything into one. Thanks for your suggestions!

@happytime6181

7 ай бұрын

The main reason that I am willing to pay for this Peter add-on module because it will now allow the load to draw the power from the solar panel instead of the battery after the battery has reached 100% state of charge.

@aidendeem903

5 ай бұрын

@@happytime6181 Have you tried either DVCC or ESS?

All this information just to supply a steady stream of power to the house 🏡 My wife is happy just flipping the switch and the light went on. 😂 But we know 😎

@OffGridGarageAustralia

7 ай бұрын

Well, we're far beyond just flicking a switch😄

28:55 at this point of the video, I am convinced it does have very very good functions! those commercially sold prof bms ought to put it in their product!

@gg-gn3re

7 ай бұрын

yea it's honestly embarrassing this hasn't been added to BMS controls already.

@OffGridGarageAustralia

7 ай бұрын

Yes, this should have been part of any BMS out there for a long time. It's just a bit of software...

What an awesome addition to an already awesome BMS. I have a Batrium bms for our house but built an ev quad and went through various BMS til I found out about the jk BMS on this channel. It works flawlessly ! I would like over time to use jk BMS on house with smaller batteries and multiple BMS like your setup. One thing that could be added which you touched on was adding relay’s to the Peter board. For me heating is required in winter. The Batrium can do this but no option with jk. Maybe this could be something the Peter board could offer heating/cooling?

@uksa007

7 ай бұрын

Hi, JK does have an option you can purchase the BMS with a heating option.

@moestrei

7 ай бұрын

​@@uksa007The new Inverter JKs have heating control.

@uksa007

7 ай бұрын

@@moestrei So does the old version if you order the model with -Heat.

@robotsflo

7 ай бұрын

This feature can easily be added. But the yaml source is closed… if it will be open, lot of variant can fast appear,and Peter could concentrate to selling versions while the community add features

Thanks!

@OffGridGarageAustralia

6 ай бұрын

Many thanks for your support, Alex 🙏

Quite the controversy unfolding as to whom "OWNS" the rights to this opensource project. I've been following this project for sum time now. A lot of contributors, a lot of code fragments by various individuals, and combined into this product, which is now protected by a single individual. I suppose I should release my version commercially for profit on the backs of all contributors.

@OffGridGarageAustralia

5 ай бұрын

Instead of accusations, evidence please...

Great Little board...however I recall some time ago a Certain Andy not wanting to add extra "Bits" and make it more complicated......That said great Idea, and had I have not seen the new JK boards it would have answered the problem of coms to my victron. I have 4 JKBMS 2 of the older black and two of the newer longer rack units released in October(as Andy has tested). They are upto Firm 14.10 and as far as I can see all is working as it should be. I have AC coupled solar and the Multiplus 2 already supports charge voltage, an amount of time to hang there and then a float voltage. So for my setup as it stands there is no advantage to go back to the older JK Black box bms. The new rack battery style is fine. Greta to see another ossie invention coming to the rescue

@davidb.5544

7 ай бұрын

If you have a "closed loop" system (where BMS controls what charger is doing) it would technically be a more reliable system since if something goes wrong like one of your BMSs has a cell that goes over voltage or gets too hot and that BMS shuts that battery off you are then dumping all the power into your remaining batteries. If that happens to be too many amps you could then have a cascading shut down of the rest of your batteries. With a "closed loop" system it would be able to throttle your charging source so that would not happen.

@OffGridGarageAustralia

7 ай бұрын

I only show options here, not saying this it the solution everyone needs or has to buy. I want to test this one for longer. As I did with the Overkill and Heltec BMS. They were part of the battery shelf setup for long term testing. The JK 14.10 is not working correctly. CCL is wrong and no charging algorithm. I have not tested the parallel setup yet, but will do soon hopefully.

I would be interested in this for my 2 Selpos BMS, where I need better control over the 2 Growatt Inverters, which is currently set to Solar/Battery/Grid, but at night in the cheap tariff period, I want to keep the grid powering the load in this time frame even if the battery is full. It frustrates the heck of of me when it starts to drain the battery before the cheap tariff has finished. Another great video Andy thanks for all your efforts. Now I must go switch the car over to power the ASHP, yes I have a 6kw Setec Power Station to use the Nissan Leaf 40kWh battery as a backup supply for my heating. We have been experiencing -5c here in mid Wales over the last week. At this time of year I only get 3.5kWh of solar from my 3kw solar array, I need to change and add more!!

@OffGridGarageAustralia

7 ай бұрын

Thanks, that will come with the CAN to CAN board, Peter is developing now. Once ready, I'll show it here... I'm interested in this too 😉

@showme360

6 ай бұрын

@@OffGridGarageAustralia That's excellent I will look forward to that, very exiting!!

Finally new music. Thank you. Love it. Edit: My bad. It's the same. LOL

@OffGridGarageAustralia

7 ай бұрын

Can't change the music any more, my friend. NEVER 😂

@DivyangM

7 ай бұрын

@@OffGridGarageAustralia That's your signature sound.. 😄 love your videos btw..

@OffGridGarageAustralia

7 ай бұрын

@@DivyangM Thank you!😊

Very cool. Hopefully Peter manages to inferface with the JK-Inverter BMS, Seplos etc etc as well.

@OffGridGarageAustralia

7 ай бұрын

Yeah, he's working on it... it will be very interesting

@afferzikes

7 ай бұрын

let me understand correctly, will a future version work with inverter bms for optimal settings? @@OffGridGarageAustralia

It'd be so nice if there was a Seplos "Peter Board" as well. A lot of people out there are using this BMS - I could imagine there is a "market" for it

@OffGridGarageAustralia

7 ай бұрын

Peter is working on the CAN to CAN board which will exactly do that.

Very nice. JK is a great BMS. Glad someone finally is making use of its ports. But one "peter board" per JK? Really? Edit: just saw in the comments there is a multi BMS version.

Thanks

@OffGridGarageAustralia

7 ай бұрын

Thank you very much!

Peter Board is the name!!!!!!!!!!!

@OffGridGarageAustralia

7 ай бұрын

Hahaha, we have a lot of Peter-Equipment in the garage😂

A feature that would be nice is a way to have the BMS "ramp-down" the current as it approaches the target voltage. I currently use a bluetooth connection from my Home Assistant that has triggers setup to do this. My home assistant also has control of my inverter. When the BMS gets to a specific voltage, it will limit the current from the inverter. This then allows the BMS active balancer to slowly charge the higher cells, and the balancer gets the lower cells charged. This has the advantage that the BMS does not need to turn off and on when a single cell hits its max voltage. Usually with the battery BMS max set at 57.2, it lets the inverter supply up to 120a .. But when the voltage gets above 56v (about 95% SOC), HA ramps the current down to 10a. The balancer now has the opportunity to get the delta of the cells corrected and the whole bank slowly charges to 57.2. I have 7 BMS's connected, so the current is split between them, so actually the current going into each BMS is usually between 20a on the high side and 2a on the low side. Works out perfect and I have balanced cells across the entire bank at the end of the charge cycle.. I think this device could do the same thing with added benefit of a smarter current curve and enabling/disabling individual BMS as needed. I look forward to seeing Andy show the the multi-bms in action.

@OffGridGarageAustralia

7 ай бұрын

That is not necessary. The battery will ramp down the current automatically once charging voltage is constant. It would have no advantage if you do this artificially.

@RoySalisbury

7 ай бұрын

@@OffGridGarageAustralia Not true. If you have 16 cells and 1 of the cells reaches the setpoint before the rest, then the BMS shuts down charging. Then once the balancer gets that on cell back under the setpoint it will turn the charging back on and the initial high inrush of current will cause that already charged cell to spike up in voltage and shut down the bank But if you have a lower max current inrush coming from the inverter, then the single (or multiple) higger cells will not reach its setpoint as quick, allow the BMS to stablalize the charing voltage and give the balancer time to do its thing. Give it a try. You will find that the system actually get charged quicker (less on/off) and is better for your battery because you dont have indiviidual cells always going over your setpoint. It makes a big difference in my 7 battery (112 cell) bank. Before doing this I was never able to get my cells delta to within 0.115v. Now, 99% of the time I am within 0.007v by the end of the absorbtion cycle.

@RoySalisbury

7 ай бұрын

Just so that I verify what I am saying, I will lower my setpoint and SOC, turrn off my automated current modification in HA, and let the system run for a week and see what happens.

i have a DIYbms by stuart it is very good, and continually developing.

Excellent video as usual!!! Is this Peter Board for 12/24/volt or just for 48v? Also - I saw something on your wireless network - "pool microinverter." Are you using a microinverter for your pool panels? If so, how is that integrated with your battery system? Did I miss one of your videos?

@OffGridGarageAustralia

7 ай бұрын

It can connect to all JK and JBD boards as listed in the video description. It does not matter if they are 12V. 24V or 48V, it will just work with the BMS.

My inverter's charge controller settings are already adjustable via Home Assistant (and/or Node Red). My inverter's charge controller does have both absorption and float voltage settings but float mode does not kick-in in a manner suitable for LiFePO4 (more of a lead acid hangover). So I've been thinking about a simple automation to do the absorption time thing and then drop it to float voltage. That's a free (and cable free) option for anyone to consider.

@OffGridGarageAustralia

7 ай бұрын

Yeah, but you need to know how to do the integration in HA and also code in Node Red. Not easy if you don't have the knowledge. The Peter Board is more a plugn'play solution and beginner friendly even your inverter cannot do any of that by default.

Andy thank you! This is awesome solution!! I have waited it for a long time🎉 still having Rec active bms that controls every victron charger in my system with DVCC and it works perfect and fully automatic but only with one battery (one central bms-one battery pack). But i am using it on the boat and solution should be foult tolerant (consist of several batteries) and that's why Peter's Board looks like gorgeous solution for sailors also (several packs 12 or 24v connected in parallel with JK bms and Peter's boards connected). Do you know how many Peter's boards maximum can be connected in one chain ? Thank you Peter, if you are reading the comments! You are on the right way !!!

@OffGridGarageAustralia

7 ай бұрын

Thanks for sharing. There can be up to 10 BMS in parallel, 1 master and 9 slaves with the Peter solution. And they will work with 12V and 24V BMS.

Just thinking out loud, For UPS only power systems, it would be advantageous to enable float mode long term. ie, Bulk, Absorb > stay in float @ XX% SOC until rebulk trigger voltage of "xx"

hello andy, what make peter board if first battery pack is fully charged and another two are 97% charged?

Hello Andy first congratulations. Your vidéos are very clear. But i realize that we are missing some vidéo for sailing croiser or van. Charging with multiple sources one by one or together. Exemple solar plus engineering or 230 v charger. And also i did not ses à vidéo explaining what is à good charging. Thx

@OffGridGarageAustralia

7 ай бұрын

Thanks for your suggestions, I'll see what I can do. Lots of charging videos here where we explore how to charge LiFePO4 though.

#1 clip in 2023!

can this peter board lower the CVL if a set cell voltage deviation is reached? or can it force reset to 100% SOC when it is neded and not at protection voltage?

@j.borner462

7 ай бұрын

My Tao Performance BMS can do that too!

What happens when you connect more Peter-boards in paralel? If one Peter-board trigger the absortion, it will be limiting the charging voltage for all the batteries?

@uksa007

7 ай бұрын

The master controls the charging logic. If they are all in parallel they will all be very close in voltage when getting close to the absorption voltage.

hi i have a midnight solar charge controller its a classic 150, it has all the settings you show and more, bulk ,absorb volts and time,and rebulk volts and more, all settings can be done on pc with the app, it also has a wind mode for use with the wind turbines, made in the usa, its input volts is 150 but you can get 250 volt verson works fine !

You are adjusting the charge current to keep the battery between your desired temperature limits. Wouldn't it be great if the Peter board monitors the temperature and adjust the charging current to stay between the desired limits?

@OffGridGarageAustralia

7 ай бұрын

That is exactly what HA does for you and much more. It is very easy now, having all these sensors available. If the inverter gets hot, slow down charging. If the cell voltages go too high, slow down and activate the active balancer. If the weather forecast is sunny, charge at a slower pace... the possibilities are endless.

That was a loud storm; almost as loud as your bitcoin miner! The Peter board looks interesting; it concentrates the interesting job of dealing with inverters away from the safety related work of the BMS. I hope the CAN-CAN board (presumably Pylontech protocol on both sides) will work a treat!

@OffGridGarageAustralia

7 ай бұрын

Yes, I'm really keen to test the CAN-CAN board myself. I think a lot of Seplos customers will be waiting for that one...

Sorry if dupe, but is the interface able to reset the SoC? Because, one of the biggest gaps of the jkbms is that the SoC only reset once reached the OVP (not ideal)... From my experience with more than one jkbms, their SoC deviation/error grows between 1% and 2% per day if not reset.

@OffGridGarageAustralia

7 ай бұрын

The SOC is determined by the BMS and cannot be changed as such. Peter is already working on a software update, where the Peter Board is telling the inverter the battery is at 100%, regardless the SOC of the BMS. So, the board will keep its own record of SOC.

Hi Andy, it would be interesting to hear your opinion (maybe this could even be a topic for a future video?!) about the Victron BatteryLife functionality. Now in winter our battery is effectively dysfunctional for days/weeks because of this setting as the battery doesn't get discharged below an increasing percentage. Sunny days that allow to charge the battery to 100% to reduce this threshold in 5% steps are too few. Now I am wondering whether I should disable BatteryLife and instead disable discharge manually from time to time to get the battery up to 100% and allow the BMS to balance/reset the SOC.

@OffGridGarageAustralia

6 ай бұрын

The BatteryLife function is only for lead acid batteries, not lithium. So, turn it off. See 3.8.3 here: www.victronenergy.com/media/pg/Manual_BlueSolar_MPPT_75-10_up_to_100-20/en/features.html

no offense but 110$ isn't too cheap, it's quite the opposite. The hardware alone can be had for under 25$. I know there is alot of work on the software side but that price is just too high... 50-60$ would be far more reasonable imho. Still a impressive piece of tech.

@Remigius0815

7 ай бұрын

Being in Electronics Engineering myself I strongly disagree - $200 would be more appropriate considering the development effort, prototyping, testing in various configurations, documentation, support, warranty exposure, distribution, etc. for a niche product.

@brianthompson9485

7 ай бұрын

Feel free to make you're own for less. For those without the ability it's a great capability at a reasonable cost.

@davidpenfold

7 ай бұрын

Have you seen the price of the REC BMS? And it's specific to SMA/Victron or whatever and if you use more than one you need to buy an even more expensive master BMS rather than stringing them in series.

@Juergen_Miessmer

7 ай бұрын

I agree. 110$ for each JKBMS is to high. There are allready other open source solutions out there in development wich need only one board for multiple BMS.

@LordOneHoop

7 ай бұрын

50-60 dollars and without monthly donations.

I am new to this and planning to build my battery soon. I have a MUST inverter and it has all of this : Absorbtion voltage, Absorbtion time and time out and float voltage... So am I good with just a jk bms without the peter board? They have it written as Equilization .. Growatt has that too

@OffGridGarageAustralia

7 ай бұрын

Equalization is different though. This has been used to 'balance' lead acid batteries by slightly overcharging the cells until they equalize. If you inverter already has all these features, you only need a BMS like the JK-BMS.

@uksa007 Nice to see ESPHome being deployed. I make my own ESP boards, have you a suggested schematic for the CAN daughter board please? Also, will you release the full ESPHome yaml? Thanks

@Gurusi

7 ай бұрын

A full yaml would be great

@OffGridGarageAustralia

7 ай бұрын

Would be a question on his Github site maybe?

@dougle03

7 ай бұрын

@@OffGridGarageAustralia Or here since you are promoting the sale of a product that has been built on the efforts of the community but without credit or any agreement to share profits..

@OffGridGarageAustralia

7 ай бұрын

I'm not promoting a sale of this product. I'm reviewing it and sharing my thoughts and experience so far. Maybe that changes further down the track and I dislike the product for whatever reason and I will shar this on the channel as well as I did in the past. It's up to everyone individually if they wan to go ahead and use the product themselves. All credits and links are in the description of the video. Github would be a far better place to discuss your request with Uksa007 as he can share code or files which is not possible here on YT.

Fantastic. 😃 the two rj45, could it be connected to the cervoGX and BMS Seplos?

@OffGridGarageAustralia

7 ай бұрын

The Seplos BMS will need the CAN-CAN board Peter is currently developing.

Hi Andi, thats awesome. Do you know if the Peter Board is working with Two JBD-bms only, so no jk-bms ? That means one jbd-bms as Master and one as jbd-bms as Slave? Thanks a lot.

@OffGridGarageAustralia

7 ай бұрын

Yes, that works as well. Just let him know what you need and he will get your the right boards.

You got us, Andy. I'm already using this application (V1.13.3) at home today with a board that I made myself for a few €. Unfortunately the version you are presenting today is reserved for beta testers willing to pay €50 per month which is much too expensive for me.

@uksa007

7 ай бұрын

Hi, There is no monthly subscription required, the latest firmware is installed on the interface board.

@OpenSolarEnergy

7 ай бұрын

@@uksa007 Please be clear with the people who made their own board from the project on github. At first there was no board to buy. Is this the end of the open-source project on github?

@robotsflo

7 ай бұрын

@OpenSolarEnergy If you have the original yaml when it was still open source, could you post it ?

@OpenSolarEnergy

7 ай бұрын

@@robotsflo It's still on github but I can't give you the path, KZread deletes my comments.

@OpenSolarEnergy

7 ай бұрын

@@robotsflo See deprecated branch.

Parallel communication in jks 2A with some cool intelligent features... Someone struck gold. 👍👌 The "communication" rats nest a little bit more easy to navigate. And then there are those that like Modbus...😅

At this point my entire system is still using 2 versions of ANTBMS units (total of 4 installed) and I have not really seen a need to change to something else. Two of these units support a max of 320Amps which I have set for a max of 50Amps charge and 150Amps discharge. The other 2 support a max of 500Amps which I run at 200A charge and discharge.

@mrtechie6810

7 ай бұрын

My ANTbms no longer powers on :-(

I was hoping that the board would have the ability of sending data over MQTT, as I data log things with a Emonpi, it would have convinced me to buy a few of these boards straight up. the DIY BMS allows MQTT and InfuxDB

@dougle03

7 ай бұрын

The software on the board is ESPHome thus it's entirely possible to add MQTT, but I'm nit sure the developer is going open source the code, even though much of it is based on other peoples open sourced code. We can only wait and see, I hope it's not another closed implementation that will die when the dev gets bored or life takes a turn...

Andy, can you collaborate in the comments or better yet in your next video on how the functionality of Peter's board differs from Luis driver for Venus OS devices? Have installed driver on my Cerbo GX as per your video: "How to connect your BMS to Victron Venus OS. Easy setup and works with JK, JBP, DALY and Heltec." and it works perfectly with my Victron Charge Controller and MultiPlus. Thanks. Kris

@OffGridGarageAustralia

7 ай бұрын

Hi Kris, as far as I know, Louis solution only works with Victron. The Peter board works with all inverters out there as long as they are either directly supported or talk Pylontech protocol. The serial battery driver also needs a lot of tinkering with files, code and has no native support of mulitple batteries.

I would take one for $80. Dont get me wrong, i am not bashing the price,. He is entitled ti sell for what he believes is a worthy price i just simply cant afford 110. The other day Andy showed a 15amp active balancer for almost $500.. Jehu showed 10amp a few weeks later less than 50 so i bought 2 of the less than 50. My advice is hold your price since its new. But once you have made enough return on your investment or the market becones saturated with reverse engineered clones please remember the rest of us who would like a discount. Keep up the good work

Sheider XW Pro does have all the functionality build in. Talks to MPPT, talks to BMS, has float and so on. It is the most robust system I have experience with so far. It is pricey, but considering that it is transformer based, just the copper will blow the cost up. You really get the value of your money with it

@EvrnDiller

7 ай бұрын

Yes, that's what I have - actually xw+. I inherited 8 sunpower battery packs that I cannot get to work with the schneider insight facility 'wizard box,' so I'm planning on ripping out the proprietary bms's in these packs and replacing with jk bms. I already bought four of the 'inverter' jk bms units before I realized that this 'inverter' function doesn't work. Actually, I'm not sure I will gain any benefit from this 'inverter' com stuff. I'm off-grid, so there are no smarts really needed - I get what I get and that's it. I do have some ideas for smart coms, but I don't think they are a part of any system so far. Each of these sunpower batteries is rated to 90A charge/discharge, and the schneider can charge much more than that, so if a bunch of the bms's went bonkers and turned off, it would be good if the inverter/charger would limit the current to/from the total battery bank so the remaining working battery/batteries wouldn't go over limit and shut off. This seems unlikely but whatever. I currently use four simpliphi 3.5's, which are not the 'smart' models, and I charge to 56V and hold for 6min (simpliphi suggested), and then float is held at 54V all day if sun keeps up with load. I'm not really sure what an inverter com would get me in my situation. There is one shortcoming of schneider, in that their maximum setting for 'turn off' is 48V, which is lower than the simpliphi 50.5V recommended, and the way they say to get around this is to turn on auto genny start at 50.5V, which is what I do now. This new system will be independent of the current all-schneider+simpliphi, but also using XWpro, with these sunpower packs, so I don't really know if these is much of a problem using 48V as a low cut out. Simpliphi has this 50.5V parameter for their max warranty. The new system will not have a generator, and likely for just luxury loads like car charging. Any thoughts on what I might be overlooking by thinking I don't need the smart coms? BTW, the main reason I can't use the existing sunpower bms is that it turns off after 20min because it sees no coms.

@EvrnDiller

7 ай бұрын

Also, if the schneider already has some of this functionality, what about the cross-talk between the two demands - say absorb time for instance?

@contemporiser

7 ай бұрын

@@EvrnDiller I'm quite new to the business, we just opened a shop in Cyprus so I'm still learning. I never had to do with xw+. Seeing other stuff we sell, I would not have a second thought what to choose. I build one off-grid system for the shop and I'm still experimenting, so I would rather rely on your own experience.

@EvrnDiller

7 ай бұрын

@@contemporiser I don't use the schneider battery monitor, which is basically a shunt, so I don't have a way to gauge state of charge. This would be nice, but is not a necessity at all. Being off grid, I use what I need, and if the generator comes on, so be it. This is not very common - just a few times each winter, and usually it's because I forgot and left the well pump on or the car plugged in. I had great hopes when I first got these sunpower batteries, as their sunvault system uses schneider xwpro inverters plus the insight facility, of which I have spares. However, no luck. I believe there is some other wizard box in the sunvault which makes all this stuff work. Just learned too that this peterboard in this video won't work with the jk inverter bms, so I guess it won't help me in any case. Hopefully the inverter bms's will work as well as the old jks just as agnostic bmss.

@contemporiser

7 ай бұрын

@@EvrnDiller One of our clients bought an off grid system with Rosen Lifepo4 batteries. They had some major malfunction, 2 batteries and a mppt blew. They didn't use our service for installation so I am not sure for reasons, I blame their installer but we can't say for sure. They say it was a thunder strike. We covered their warranty so I got the corpses to play with. Battery was severly overheated and 2 cells puked their guts. from whats left I put together a 15x4 battery and I bought seplos BMS. (I don't expect much of a lifetime from those cells, all stickers are delaminated) I connected the bms with the xwpro through a can bus, it was recognised as a pylontech. I use usb to rs484 to access the bms, I didn't have much time for tweeking, but it works ever since with no issues. To stay at the safe side I got a 150A bms instead of the original 200A

Hi Andy, what about the reset from the SOC? The problem with jk bms is that it triggers the 100% SOC with the cell overvoltage protection. Does the peter board also solve this problem?

@uksa007

7 ай бұрын

Hi, more recent versions of the old JK-BMS have a 100% SOC and 0% SOC voltage reset which should resolve the issue. I have one of the older versions without this new reset, and mine seems to stay pretty accurate. Calibrating current and voltage in the BMS may help.

@anacronataff1

6 ай бұрын

​@@uksa007 I have JK_B2A8S20P HW V11.XW SW V11.17H Date 2022-09-01 Version V4.8.1 and it only triggers the 100% SOC with cell overvoltage protection. And you think this version is too old?

Thank god, a fit purpose BMS/intergration solution. It’s been a loooong time coming. Question. Looking to set up home assistance at some stage. We recently had an Istore heat pump hws installed (bloody awesome!) what wifi enabled monitoring device would you recommend to connect to the Istore so I can monitor its consumption that would be visible on HA? Consider a HP Andy, I know they cost abit but we are only using 2kw/hr day compared to 10-12 with our old resistive unit that was on a PV diverter. Very use in winter and day when we need to charge the EV.

@OffGridGarageAustralia

6 ай бұрын

If there is a HA integration for the heat pump, I would install it in HA and monitor the data, absolutely! I did look into HP for hot water a few times but cannot justify the costs. It would take me 27 years before I had any saving. I use less than 1kWh/day in summer with our resistive heater element. In winter it is around 4-5kWh/day. But that's only for 3 months.

@SuperRockmonkey

6 ай бұрын

@@OffGridGarageAustralia Oh wow. Our over night standing losses are 2kw in the dead of winter. Might need to move north.

I found an inverter that keeps your Floot mode up on the battery, I'm really interested in how it works with the BMS, JK I can't get it to communicate with the inverter, where can I buy it, thanks

Andy, simple question no polemic, wondering whether the project is still open source or if it has transitioned to a commercial model, . Is it still supported as it appears on the GitHub page, or has it ceased to be open source and become a commercial venture? will be most probably happy customer but please clarify

@OffGridGarageAustralia

7 ай бұрын

All info on the Github site, I guess. Get in contact with Peter and ask the questions...

My JK BMS is integrated with Home Assistant which is integrated with my non-Victron inverter (Voltronic/EASun/Axpert), this gives lots of possibilities to program, control and monitor. I can change BOTH, Inverter and BMS settings from Home Assistant automation. My EASUn inverter has separate bulk and float settings which work. Not sure what the problem is with other Inverters.

@thomyk2

7 ай бұрын

Just like me 😊 but I am using victron smartshunt to calculate soc

@gavhuggy

7 ай бұрын

Is your solution how do you connect your jk bms and voltronic inverter connect to home assistant to get the same result as this Peter board

@KrzysztofCygan

7 ай бұрын

@@gavhuggy Home Assistant connects to JK via bluetooth. Voltronic uses cheap USBRS485 cable to connect to Solar Assistant which integrates with HA via MQTT. It's possible to connect Voltronic to HA in different way but I like Solar Assistant. There is also special but cheap USBRS485 adapter for JK BMS.

@gavhuggy

7 ай бұрын

You have the exact setup as me but i can't change the bms through solar assistant only the output selection and charge selection work nothing else as you read them but not write so how do you get more settings changed

@OffGridGarageAustralia

7 ай бұрын

Bluetooth is not reliable enough for such 'safety controls' (it operates on the same 2.4GHz band as many other devices), hence Peter went with a CAN communication.

Is there a version of this that works with the silver 4s-8s bms such as the B1A8S10P or B1A8S20P?

Andy, can the settings be managed remotely through Venus OS and/or the Peter interface software? Or is this just over LAN?

@OffGridGarageAustralia

5 ай бұрын

It can be remotely controlled, fully controlled through Home Assistant.

This is really a nice piece of tech. I'd love to see it connected to a Seplos. Why not using the Modus protocol from Seplos. Seems easier to put into the software than a can2can. I can provide you with the doc if you like. I even have an implementation somewhere.

@OffGridGarageAustralia

7 ай бұрын

If it's easier, do it. Happy to show the solution on my channel when you get it working 😉

@keyem4504

7 ай бұрын

@@OffGridGarageAustralia That was not my intention. Was just a suggestion and an offer of support. I personally have no need for that, since I'm perfectly happy with my Victron system not having a data connection to the batteries.

I allready bought the newest jk bms with CAN port, will that ever work with peter board?

@uksa007

7 ай бұрын

Not at the moment, but maybe in the future, also my CAN to CAN board may also be a solution (work in progress)

19:58 shouldn't the charger keep the battery at absorption voltage, until the charging current dropped to a low level, before going into float?

@OffGridGarageAustralia

7 ай бұрын

Well, that depends on the weather conditions. If you have clouds, the current is low anyway and would not allow for a long enough absorption time. So, I use a time only which keeps the voltage at absorption level for 1h, regardless of the current.

Is there a 230v power supply that wil work with charging the battery pack with a jk-bms in my electric car?

Andy I have experience with similar emulator (not that advanced) and this is not solving the issue with SoC in JK. Without smartshunt the SoC is reporting by bms and JK is not great at all in this. With more packs this error will be multiplied. Wrongly reported SoC caused a lot of problem on my friends instalation, so he has to change system to Victron with smartshunt. But integration to HA and potentialy new relays (two on Cerbo is not enough) it is very good idea.

@OffGridGarageAustralia

7 ай бұрын

Peter is working on a software solution so the board will take over SOC and present this to the inverter. SOC measurement in the JK sucks.

If this interface board come with dry contact that let user choose what value to activate the dry contact then it would make every BMS run perfectly

@OffGridGarageAustralia

7 ай бұрын

This feature will come in a future version.

Would there be a way to make Morning star compatibility via mod buss? I'm looking for a way I can synchronize my units as I will be having 3 batteries paralleled being charged by a morning star Mppt 60

Hi Andy i just re watched the video again , and i see that you connected it with Wi-Fi. Can you connect it with Lan as well? as i don't have Wi-Fi on my system due to bad signal. I have Lan going to my Cerbo GX tho.

@OffGridGarageAustralia

6 ай бұрын

The Wifi connection is not necessary unless you want the data on Home Assistant. You can just control the board through it's build-in access point and web interface. The board itself has no LAN port.