Great video! Keep it up. Looking forward to seeing it all set up in your shed! :-D

@HBPowerwall

7 жыл бұрын

Me either !!! lol

Looking good keep em vids coming

@HBPowerwall

7 жыл бұрын

I'll try :) takes an awfully long time to do some of them.. everything takes 3 x longer when you pull a camera out and have to make it look semi professional..hahahah

looking good also if you do that to every pack you have that will be a lot of work. Also the shrink wrap looks pretty good . Maybe a little OCD :) shrink one down and see if it looks better it should. Have a great day.

like that busbar idea and how u connect them together ;) the cable sleves i like alot. they hide the uggliest cablest and make it tidy. for the contacts between packs. if u think the distance is to much in between use copper pipe. i have done that in another install where the packs where to far apart and didnt want to bend the busbars.

@HBPowerwall

7 жыл бұрын

Now I have to agree this will be covered in next video that's in production atm. Was going for double fuses but the stronger wire on one end adds to the strength of the whole pack. So it's one of those tradeoffs I thinks.

@DIYTechRepairs

7 жыл бұрын

HBPowerwall yeap. keep up the work m8!! it might be that i have one of those batrium systems my way too. it seem damn good and this was the only one so far that came close to my demands. so will be running it untill i get my own up.

@HBPowerwall

7 жыл бұрын

Did you order one? How awesome is that! lol I'm far from an expert on this type of thing learning slowly as I go.. The more you dig the more it can do!

Hello my friend have only one question which Drath or wire thickness in mm you take to hedge the cells and solder with the copper wire. Thank you

I'm new to this but what are those long boards you are attaching?

I like those busbars. They're similar to mine. That BMS is super fancy. I wonder if it increases the available capacity.

@HBPowerwall

7 жыл бұрын

I love them too, work so well and cheap! It will definitely make ALL the capacity usable more safely I can't wait to get it onto my big packs but I need to trust it first hence the workshop testing.

Hope to see a active balancing soon :)

@HBPowerwall

7 жыл бұрын

+Christian Frericks active balancing on these cells ummm no thanks they would constantly be working at 100 percent. On a really deep discharge the cells can be more than 1/2v difference I think that would defiantly be less efficient than just passive balancing.

@MrBugsier5

7 жыл бұрын

I agree!

Once again, nice video... When you find out the right way to glue, please let me know :D

@HBPowerwall

7 жыл бұрын

lol will do !

Nice video mate. Those batteries discharges running at 60 degrees on the cells might an area of concern? Only for longevity.

@HBPowerwall

7 жыл бұрын

I'm interested to find this out, I have clearly marked Longmon on the back :) But once balanced how long are they going to work for per day 5 - 10 min maybe ? not long I'm thinking.

@craigminca7446

7 жыл бұрын

Yes thats a good point. Hadn't thought of that.....I saw heat and panicked!!! haha

@balthromaw6305

7 жыл бұрын

Speaking of those dischargers... Where are they sold???

Is there a video anywhere where you discuss why you chose to parallel many batteries, then series them, rather than putting many in series and then paralleling the result?

I understand everything you're doing I'm new to this so could you please tell me where you get your battery holders and your LCDs LEDs whatever they are. I guess I need a list of all the parts you use. I have a 1.3 KW solar array and feed directly to the grid through my inverter. I'm wanting to change over to have battery storage along the line of what you have I just don't quite know how to do it all yet.

@HBPowerwall

6 жыл бұрын

Bunch of info on the forum - www.diypowerwalls.com/t-HBPowerwall-Official or www.amazon.com/shop/hbpowerwall < that either stuff i have personally used or others have recommended.

Cheaper shrink wrap try using two liter bottles they are stronger and more secure.

How many amps may be draining from each cell? Are those thin wires enough for that?

@HBPowerwall

7 жыл бұрын

at max load 80amps on 30kWh pack it's 0.333 amps per 'cell' Those wires are more than enough :)

ever thought perhaps a solder bath station for each terminal before putting them in the harness, just curious is all trying to find a easier way to solder those contacts.

@spidermcgavenport8767

7 жыл бұрын

like a pcb with spring's like those on a stator. in a motor alternator or dynamo.

@spidermcgavenport8767

7 жыл бұрын

with this concept you could easily remove poor performing batteries with just a few to pop them out.

Hi Pete, What do you use for BMS and which software you are using to monitor?

@HBPowerwall

7 жыл бұрын

www.batrium.com :)

@zenithdinesh

7 жыл бұрын

Cool, are you in south side? I am in forest lake maybe catch up some day. Do you have video of BMS installation? Can I use this in EV? I think its BMS so shouldn't be a problem. You, Jehu and couple of other guys doing great on tube. Thanks for time and effort you are putting to get this videos roll.

Hope you can go over the advantages and disadvantages of using a BMS. That's my main dilemma right now.

@RobinCernyMitSuffix

7 жыл бұрын

A BMS is essential for a large battery bank. Of course there are people who are yelling "If you have good healthy and balanced cells you don't need a BMS and/or a balancing". But you know what? The battery system on the International Space Station has also a BMS who does balancing, and these guys know what they doing. Go figure ;)

@HBPowerwall

7 жыл бұрын

Disadvantages: Three pairs of worn out flip-flops from walking back and forth manually checking Advantages: None yet, haven't installed it on my bank - but looks horribly promising :)

@whatthefunction9140

7 жыл бұрын

I think the core argument against a bms is that it increases the complexity and instead of checking cell voltages you are checking if the bms is still working...

whats your fuses' wire thickness ? And do you calculate fuses thickness for a single cell ?

@HBPowerwall

7 жыл бұрын

I use amzn.to/2lZTQST but be sure to do your own tests !

@acd4807

7 жыл бұрын

okay so how can i calculate that max amp for each cell ? i have a 60 v 20a battery and my bike's controller nominal load 20a and peak load is 40a. İf u answer i would be happy.

How many wires are you twisting together for your buss bars?

@HBPowerwall

6 жыл бұрын

I use the positive and active cables with in 4mm2 240v cable

Poor white connectors.. leave them alone haha Yeahhh your display POWERWALL + Batrium system is looking reeeeeally good mate, well done!!! =]Hey Peter Matthews did u like my photo with Mr.Batrium (Jaron Ware) yesterday, we took it specially for you... hahahaha

@HBPowerwall

7 жыл бұрын

+ElectricBike (Bruno) hahhha you guys are the cool kids !!!! Ahhhahah

What's the maximum discharge Ah per the Batrium? Wondering when the cells start aging how good that BMS can balance

@HBPowerwall

4 жыл бұрын

1.5 amps

@shinosg-wiz4619

4 жыл бұрын

@@HBPowerwall thank you. Do you know if there are actually BMSes capable of higher amperage?

have you had to refurbish one of your 80 cell packs yet (due to a drop in total cell capacity)?

@HBPowerwall

7 жыл бұрын

Several, because I'm out of space I'm replacing or upgrading packs to bring the overall quality up

@honeybadger6127

7 жыл бұрын

can you do a video demonstrating this... how you go about finding failed cells in the 80 cell packs after you suspect the total capacity is low (or perhaps you already have)?

What fuse wire size do you use Peter?

@HBPowerwall

7 жыл бұрын

0.24mm wire amzn.to/2iBxTZS this seems to be working well for me so far.. time will tell :)

RS online sell 5 x 1M lengths of 6mm solid copper rod for $15 a metre, there is cheaper around.

Does the Batrium "thing" balance? - and what's the difference between active and passive balancing?

@HBPowerwall

7 жыл бұрын

Now I'm not an expert - active - when each cell constantly passes current to one another to stay 'balanced' Passive - is only at a given voltage will it start to 'burn off' power to bring all cells to the same voltage.

@FullSendPrecision

7 жыл бұрын

Cool. So the Batrium DOES balance?

@HBPowerwall

7 жыл бұрын

It does :) As well as a whole lot more. Cold climate, have an EV and your batteries are cold Just ask the BMS to pre-warm them :)

@FullSendPrecision

7 жыл бұрын

Interesting. I'm looking at building just a 4S 12v package lifepo4 system and am in the research phase of things. I'll have to start digging into the Batrium docs if I can find them. That site needs a technical writer!

@jaronware5738

7 жыл бұрын

The BMS will balance the cells to any configured value, there are also options for it to remote throttle the inverter/charger regulating the power in to the cells. If desired another feature can be enabled to have the cells adjust to a matching voltage not just at the target top of charge level when the pack is idle.

hi where you get the software for the batteries

@HBPowerwall

6 жыл бұрын

www.batrium.com - software is part of my Batrium BMS

is that bms not a bit light for that amp hour rating pro 4v pack?? in my opinion 65 ma is nothing for that huge 4v pack??...

@HBPowerwall

7 жыл бұрын

+MrBugsier5 it was balancing at 1.75 a for 14 plus hours :) didn't go above 4.2v so guess it's ok for now. Time will tell for sure. Might change with 100amps of charging :)

@MrBugsier5

7 жыл бұрын

whell, , 1,75 ist that mutch off a load to it to... lol, but again , i/m used to huge lead acid packs... lol

@HBPowerwall

7 жыл бұрын

max is 2amps better than the 40ma balance 200amp max bms I've got before! Once balanced how much time per day do you think they'll be balancing for - 10 min - 1/2 an hour is about all it'll need across the whole pack I thinks... Well, I hope!

@ahaveland

7 жыл бұрын

+HBPowerwall That would be my concern too, that the BMS looks a bit light - a situation could arise where it doesn't have enough oomph to pull a stray pack back into line, but as you say, 2A is better than 40mA! It'll be interesting to see how it gets on, and I'm sure you'll soon notice if it struggles to keep up! :-)

@HBPowerwall

7 жыл бұрын

Hell yes, I'll notice (has 10 years data logging) then I'll video it and upload - But if you look at the way chargers work - top of charge they ramp right down my PCM60X is about 2-5a when approaching the top of the charge. This is all learning - Current settings I have it set to 4.1v and soon be changing to 4.0 volts per cell so still have 0.2v for buffer

At 0.5 amp will take ages to balance cell 1 ?

@HBPowerwall

7 жыл бұрын

the issue is more with the totally inadequate charger I'm using that isn't really up to the job. That and cell one was almost a volt different than the other two.. making the workload on the Longmon a little heavier than usual

@station240

7 жыл бұрын

Way better than the 0.04 amp the ebay BMSs are limited to. As pete says elsewhere in the discussion, max for this BMS is 2A. What's the current on the 12V charger your using Pete ?

@HBPowerwall

7 жыл бұрын

3.3 amps but I'm doubting that ! lol

Your big lug crimps, here is a way to test you have a good crimp, so make up a test crimp the same way you connect up a battery crimp and cut it in half across the connection, and it should be solid in the centre with no air voids, that means your squeezing the crimp with the correct amount of copper in the lug, and your crimping tool is working correctly with the correct amount of hydraulic pressure to the lug

@HBPowerwall

7 жыл бұрын

+Eoin Caldwell cool ill to that toady for sure !!!!!! Il put it in the next vid.

@MrBugsier5

7 жыл бұрын

yeah, and dont put solder in it helps to!

@HBPowerwall

7 жыл бұрын

Yep, gotcha! wow i thought it would make it stronger not weaker over time, well something new every day

Dirty old Jaycar, are you in Melb, better places to go than Jaycar for better quality and cheaper prices.

@HBPowerwall

7 жыл бұрын

Brisbane, I agree cheaper but not more convenient - buying offline is 1/3 the price but takes longer. And I'm horrible at planning ahead lol

"dunno how much, didn't look..." receipt says total AUD32.85 Then you forgot the red heatshink, so who knows.

@HBPowerwall

7 жыл бұрын

$61.45 inc wires and other stuffs from Jaycar that's like a whole weeks income on youtube :) lol

It's simple but expansive and losing energy for hot. Better idea is active balancer. Good luck.

@HBPowerwall

4 жыл бұрын

You clearly haven't looked at how much energy an active balance uses to do it's job.. You might change you're tune when you actually check.

You really should of gone the extra mile and re-wrapped those batteries, it would have taken you mins and not only would they look better but you get a better inspection of the battery... often dents and other undesirables are well hidden. Also... would had been better, safer and faster to weld the joints using a cheap pulse welder. Just my 2 cents.

@HBPowerwall

6 жыл бұрын

Rewrap not required, extra expense and time i can do without. Have a cheap spot welder it doesn't work :)

bms not working

@HBPowerwall

5 жыл бұрын

Who’s?

Привет! Всё охуенно, молодец 👍👍👍👍