13:52 any idea if that battery pack with BMS salvaged from broken unit will work without that extra com cable or whatever it is connected with a different MPPT controller?
@jampam-jf8mtКүн бұрын
All the Vtoman power stations have jump start and extra battery features..It would be interesting if you do a teardown of the little Jump 600x and as you already have the jump cable, you could test the jump start on the little power station as well.
@jampam-jf8mtКүн бұрын
Not sure about the Flashspeed series but on the Jump series the last percent takes the longest. The display flashes when the power station is charging.
@jampam-jf8mtКүн бұрын
The firt press of ANY button turns the display on
@jampam-jf8mtКүн бұрын
Fantastic power station if you don't need to run a diesel heater. The jump cable is an optional extra but it's only £25
@bmrapple3 күн бұрын
Just wanted to say your videos have provided me with invaluable info on getting my heater install perfect. Thanks mate 🍻 🇦🇺
@peachgreentealuvr3 күн бұрын
are they heavy?
@howtodoitdude16623 күн бұрын
Nice! I would add some cross members for added security.
@MrGodsking3 күн бұрын
david you are the expert can you convert this to heat water.regards. declan
@MrGodsking3 күн бұрын
hi david is it possible to convert vervor diesel heater to heat water
@DavidMcLuckie2 күн бұрын
Sort of yes. Bobil Vans make a unit that takes the hot air and turns it into hot water - www.bobilvans.co.uk/product-page/new-bobil-air-xchange
@tonybainbridge24463 күн бұрын
Hi David, great video thanks, do you have a video on removal of the window regulator?
@roseclan66644 күн бұрын
Hi David can I only download the Hcalory heater app if I'm a patron?
@DavidMcLuckie2 күн бұрын
Nope, on my website for all - davidmcluckie.com/download/hcalory-heater-app/
@frederick60084 күн бұрын
I like the small clicker with the cheap heaters. On/off, up/down 👍
@ExpoXj15 күн бұрын
Yes you can.
@exactam05 күн бұрын
The initial reaction was a fairly convincing endorsement. Now I’m definitely going to have to order a pair just to experience a piece of that overwhelming silence. 😂
@MrKeveo6 күн бұрын
I Just bought the OUKITEL RT8 from OukitelUK. And When it came there was no stand or neck strap in the box. On contacting them they said they don't sell with these item. I have to buy these items separately. They don't say anything on the web page at all about this. So if you want the full package. BUY FROM SOMEWHERE ELSE. They were kind enough to send me a 10% discount on my next purchase which I tried to use on the items that were missing. And they said I can't use discount on these items. WHAT A CON THESE PEOPLE ARE.
@PaulAlford757 күн бұрын
0:52 did you say DEATH adapter?
@DavidMcLuckie6 күн бұрын
Yes, gotta love those easily touchable live connections. :)
@JimLahey217 күн бұрын
Any updates on the reliability of this pump?
@jobbingactor7 күн бұрын
I forgot to say, ref waste oil heaters etc, didnt use mine this year, got 8 old laptop batteries and 20 quid heated vest. Fantastic. Solar charges 4 18650s while the others heat coat. Defo recommend.
@mat42608 күн бұрын
Thanks for the video. What paint did you use? I'm about to spray a 40ft container and interested in this unit
@DavidMcLuckie6 күн бұрын
That was 'skip paint'. This stuff - www.ebay.co.uk/itm/313471507497?itmmeta=01HZ7PHXS8JNRZ8ZJZME09TFEA&hash=item48fc5b9c29:g:~2sAAOSw2YNgr3d-&itmprp=enc%3AAQAJAAAA4PJCFg4TTbJlvhotkG7I2E4%2FNYUhZi6vAK7DrHao8pv2iWhRXYslOvxNdfFT3uVLlUBaAOdycrFGF8OvK9AlBSulENcSYurdaRem%2FafmoG6K99mBowz0h3TtLiWg22%2F5ywhBXmWVer6hTGgN3419FxdaEcGD1zaPbtLC0E8xxmLmSVjNmrPduxF9KEDUeAoywa1Ctz2YZnO12q4ou0Q8FngAz56yG7bXUt4ZvEEYXV4KUe7LNxDi5M0lDZVVwsLtjTKvmB%2FfUW0DkPDGpwcgNrX3uYQDSfTFs7%2BR%2FtZz2X3E%7Ctkp%3ABFBM4NzH9vlj
@mohamedzadri24068 күн бұрын
😂 don't test airbag
@dwalsh34698 күн бұрын
Will the jump starter cables operate a diesel heater?
@DavidMcLuckie2 күн бұрын
In theory yes. But as it's only using half of the battery pack my concern would be how unbalanced the cells would be after some time.
@assassinlexx19939 күн бұрын
Jump start may be ok for a gasoline mini engine. But a diesel truck engine will pop the overload. There is a reason why diesel have a battery designed to give you a hernia. Your home is well equipped to give you a cup of tea. Till the mains juice up. It is always fun. When the power goes down. Your house is all lit up and watching a video.
@DavidMcLuckie9 күн бұрын
I wish I had something big and diesel to test it on. There is a diesel forklift but I don't think the engine is very large.
@assassinlexx19939 күн бұрын
@@DavidMcLuckie Now where's a train engine 🤣🤣🤣
@twocvbloke9 күн бұрын
Certainly could do with longer cables for the jump-starting feature, but a quick hack would to just use a set of standard jumpleads and clamp them onto the device's battery clamps, or just use one of the smaller packs instead... :P
@bedlam81599 күн бұрын
Is there an extra charge for the cable from new?
@DavidMcLuckie9 күн бұрын
Sadly yes, it doesn't come with it.
@nigelwood80079 күн бұрын
Do you sale anything when you finish with it and love wching your chail
@glyngibbs94899 күн бұрын
Nice vid thanks for sharing. That oscilloscope looks useful. Can you give us a demo on it please. If it's old is there an updated version?
@ShadowzGSD9 күн бұрын
i assume it will work, but how about diesel engines? i only ask because i have one of those little jump starters and it works on any petrol thrown at it, but only some diesels. 1.6l van no problem, another 1.6l van and my 2l car no chance won't even turn the engines over a full turn before dying .
@kuhrd9 күн бұрын
The little pin in the blue connector is for spark supression if fitted. It works similar to the spark suppressed XT-90 connectors. It should have a resistor from that pin to the main connector cable and a slightly longer pin on the other side of the connector to make connection first and allow capacitors to charge in connected equipment without an arc before the connector is fully seated when being plugged in.
@DavidMcLuckie9 күн бұрын
Thank you, very useful information.
@davidbayliss378911 күн бұрын
@DavidMcLuckie ... I despairingly searched for VTOMAN Flashspeed 1500 teardown (in KZread) and saw your Bluetti video which looked interesting ... and thankfully then I could see in other listings for you the VTOMAN! Yay! I want to take mine to pieces and wanted to find out more information first. :) Ha - though I wished you hadn't skipped over so many details of the disassembly. I think mine is an earlier model (bought last year) as I don't get the time-remaining on my display. I bought mine late last year I think it was ... maybe October or something (2023). My DC jack input is rated at 10A ... I think I've seen on later listings that's increased to 20A. I didn't get the jump leads either ... I think they get supplied with the jump series and not with the flashspeed series. I wanted one to use as a PC UPS ... hmmm .... I plug the battery into the mains and my PC into the Flashspeed ... yes ... it does work as a UPS seemingly very reliably. My PC power supply is a Seasonic Gold Focus one: Seasonic tend to have good hold-up times, so I'm not sure how long switch-over time is. The problem I have is that the mains charging keeps coming on very frequently keeping the battery at 99% ... 100%. There's no easy way to automate that not to be like that. And when I tested capacity in April-ish, - so 6-months ish of 24/7 operation, I found it had lost about 2/3rds rated capacity. I contacted the manufacturers and they suggested some charge/discharge cycles including some slower cycles etc. Experimenting, and after implementing some slower full discharge/charge cycles, I could just speed up to using a 2KW hairdryer (resistive load OK) and the built-in AC fast charging to go through cycle after cycle and the capacity seemed to edge back into 80% ... 90% sort of range at that discharge rate. (Maybe after 20 to 30 cycles). I never got around to a slower discharge cycle again to better estimate after allowing for inefficiencies etc. ... I'm not sure if the batteries fully recovered or not (I'm very busy). -- I wish these things could be set to charge to 100% periodically, and then discharge (via the load) to say 75%, 80% ish, and then stay on standby without recharging again until there's some brownout/blackout event in which case the "flash" in "flashspeed" might be useful between persistent bouts of energy disruption, or 'til the next timeout set for a calibrating 100% charge. I haven't found anything that does that. I wonder if I can force the VTOMAN to do that? @DavidMcLuckie - there's a challenge for you lol (and show me how to do it). :) I was hoping things might be modular and that I might be able to intercept some logic-level signalling without confusing the LifeBMS too much in the process. The CAN bus in the Bluetti looked opportunistically interesting. I like having battery/invertor etc. in one box and spec'ed well enough such that it ought to be able to power a nominal 150W load indefinitely without overheating worries etc., but I have yet to find anything on the market that does what I want it to do at the scale I want. LiFePO4 cells a must. Safety/longevity/reliability a must for unattended operation. -- I've tried using the (10A for me) DC input jack to offset my 150W ish nominal PC power draw so as to have slow discharges (manually) occasionally and that does work ... but ... over time, less so. It just doesn't notice the input's there sometimes. And the barrel Jack plug/socket would get very hot. That was off a Leicke 12V 12A high quality supply. I wonder if the upgrade to 20A if it's there in newer models mitigates that. From yesterday afternoon I tried using a Meanwell 48V 600W LRS series PSU with 12 awg cabling to a 30A PowerPole (Anderson) connector for the "solar input" (MPTT). Visually looking at the PowerPole connector in the device I guessed it to be 30A but it's hard to tell (30V min. input at 400W would be within 15A spec. so wasn't sure ... I'm going for 48V / less current). It seems to mate properly and I could feel no heat from the 400W transfer. So yesterday that 400W powered my 150W nominal PC with the 200W-odd balance going into charging the batteries. In a 21C environment the Meanwell fan came on periodically, and the VTOMAN fan was on but quite low and quite steady though the case felt quite warm to the touch. But then ... after reaching 100%, that power input was ignored 'til this afternoon. Despite variations of unplugging/re-plugging with large intervals, turning off the Meanwell PSU while still plugged in to the VTOMAN etc. This afternoon it's mostly been "noticed" I think ... BUT ... I don't think it offers pass-through of the 400W to my PC unless it's in charging mode. So it discharges the battery. I let it get to 49% before plugging the AC back in. I guess I need to revisit that logic level interception idea with AC input and presumably "switch over" from AC line in to the invertor (I assume the invertor isn't supplying the output current all the time when there's an AC input). So I can just disable charging when I want. Crossed fingers. I'm thinking of some simple LoRaWAN/optocoupled/ESP32 sort of thing for safety/reliability. Whenever I take things apart of this ilk (very very rarely) I'm always incredibly careful - I'd set-up some power-resistor thing for example to gently discharge any charge remaining in those big capacitors at the first opportunity just to be on the safe side. And I'd discharge the battery to about 20% first. You seem very brave lol. :) Thanks for the video - it has been helpful to me.
@davidbayliss378910 күн бұрын
Looking closely at the video, it seems that the 4-pin (I think) JST (I assume) connector thingy going to the board besides the AC in / AC out has a 5V pin, an AC EN (enable I assume) pin, and 2 inner pins I can't quite make out 'cause of motion blur. I don't know if they comprise a bus or are just signal-level state thingies. I wonder if either of them simply controls whether the AC charges the battery or not? Since I can only see one other connector - a 2-pin connector for the battery. Maybe they're some kind of sense-pins and charging-current control is downstream of that battery connector? I'm wondering whether to open it up today, or wait for some 80V, 50A rated "ideal diodes" I'm ordering from Ali Express to arrive first - so I can just crimp some lugs on and and seat a pair of them in parallel, on that main battery cable, to prevent charging current. See if that upsets anything. I'm assuming the nominal battery voltage is along the lines of 52V+ but hopefully not higher than 80V peak. If the unit can operate despite not being able to charge, then I could just enable the charging with hefty heat-sinked solid-state relay. But I'm hoping that my agenda can be satisfied less intrusively, at signal level. That AC EN is exciting ... maybe I can utilise that to have the AC always come on after an extended blackout situation after unit shutdown, and additionally shut it off before the battery goes below 20% allowing for indefinite intervals pending power recovery.
@davidbayliss378910 күн бұрын
I think I'll wait lol. I could do with another crimper, for battery lugs, and a crimper for JST and Dupont connections and stuff. I really don't want to have to take it apart more than once if I can help it ... I don't have the time, or the space to keep it in pieces. And I need it for my PC (which is setup as a server with Proxmox and PCIE passthrough for my Windows daily driver ... but I depend on my main PC for a bunch of IT infrastructure I have ... in my tiny terraced house lol). Yeah - I'll wait until I have all the parts I might need to avoid making a botched-job if possible. So I can wing-it depending on what I find. I can't really afford to damage this thing that cost me about £1000 at the time I bought it. Although, if I'm successful, I might get another one now they're cheaper and do the same to it. :) That'll cover the most of my UPS needs. I wouldn't attempt it at all except it doesn't seem to do a UPS job 24/7 without either BMS drift or possibly accelerated battery degradation being held at 100% all the time. I'll post here what I find when I get around to it. :) I'm still hoping other people will pave the way first. :)
@davidbayliss37899 күн бұрын
I had another quick look at the video and thought to set the resolution higher this time (doh) ... and I caught a better glimpse of that connector besides the AC-IN/AC-OUT ... I see now it's not 5V but the GND for the 5V cct ... and the two inner pins ... well - I could just about see "RS48" it looked like so I guess that's for a RS-485 bus! That makes a lot more sense. I guess I'll need to try out a logic analyser on that then. Feeling hopeful now though ... if there is a bus there then presumably that means a lot of control and measure is available via the bus. And if it's RS485 then hopefully I can just make an extension to that connector and add in my own device. Woohoo!
@kaliktp158611 күн бұрын
I cannot find an automatic switch that handles DC to DC 48 v array 100 amps I am not using an inverter, I have two 48v solar battery array, I want to use one as a back up, the only item I have hooked to it is connected directly to the MPPT charger. I would like to switch automatically one battery power bank to another when the voltage drop, the switch’s I found don’t handle 100amp input. Any suggestions how to find? I don’t want inverters at all, it would not be necessary for my application, it would only add problems. Thank you
@DavidMcLuckie11 күн бұрын
Why not use the small module to switch more powerful relays that match your requirement?
@Ellifiknow12 күн бұрын
Can you stick your tongue on it?
@rabbbie9912 күн бұрын
Where did you find this reader doesn’t do ABS codes? I bought it as my 2012 fiat punto has check engine light on and giving ABS, hill holder, ASR and ESP faults, however this CR319 does not find any fault codes. I was hoping it was going to lead me to the fault with my car.
@DavidMcLuckie11 күн бұрын
Non of these small readers I've had access the ABS module, they only read the basic P codes off the ECU.
@Khoruzhin12 күн бұрын
Thank you for the video. Is there any chance to disable Bluetooth by disconnecting a Bluetooth module? Or is it soldered in the main board?
@williamrogers.13 күн бұрын
Might need subtitles. Love the videos, but I only speak English. 😉
@masteragency523914 күн бұрын
What is the magic with the fans?
@jamesjennings344015 күн бұрын
Good job mate. From Australia 🦘
@jamesjennings344015 күн бұрын
Love it mate, from Australia 🦘
@jackg847816 күн бұрын
Does this 2kw heater use a .16 or .22 fuel pump?
@georgedavall944916 күн бұрын
It’s junk
@Lauriemine16 күн бұрын
Was on the fence about getting this unit, primarily for the UPS function, to power some network switches and my pc setup, however some reviews lean towards that part of the unit not operating properly, changeover times etc. Perhaps you'd be happy to check this portion of this unit out, once your jumper leads are in. Wonder if the capacity test improves after a couple charge cycles or is this due to the inverter efficiency? Might lean towards a different unit, any of the bluetti, ugreen or other units you've looked at take the top, from your experience? thanks
@DavidMcLuckie16 күн бұрын
I shall add a UPS test to the next video.
@uptowndisco217 күн бұрын
never seen one cut out so quickly trying to start a diesel heater , most at least try lol , I can cross this pack off the list 😁
@DavidMcLuckie17 күн бұрын
I need to test and see at what point it actually cuts out at.
@twocvbloke17 күн бұрын
It'd be nice to be able to change the charging rate on mains power so that you're not ramming power into the batteries, which shortens the life of the, low and slow keeps the lithium cells happy, though I'm not holding much hope of such a setting being available... :P
@DavidMcLuckie17 күн бұрын
There is a few of them that doing it. The DJI I showed last time has two input options I think 600W and 1200W. At least one of the other big ones lets you adjust the charging power from the app, the DJI is on a nice physical switch.
@jampam-jf8mtКүн бұрын
Vtoman Jump series have a separate charger and you can use a lower powered charger.
@frederick600817 күн бұрын
Where u been man
@DavidMcLuckie17 күн бұрын
Playing on bikes, the weathers been nice. :)
@stockleys17 күн бұрын
i would like to use this board on a 24v heater. i know the voltage devider will need to be modified, but im guessing everything else could remain as is? i know the mosfets are good for 100v. thanks for your advise.
@sssssssss425818 күн бұрын
Thank you . Is there a comparison between this and a phone that has a thermal camera? what do you prefer ?
@ml.277019 күн бұрын
It's your brush now. You break it you bought it.
@twocvbloke20 күн бұрын
48v electric go-kart, that's all I can think of right now, not practical, but probably quite fun for an idea... :P
@rednecktek287320 күн бұрын
So a couple things: 1: The balancing doesn't kick in until the cells are nearly full. You can tweak that point if you want to but JBD is pretty good. Don't panic. 2: The Protection switch on the first page SHOULD be OFF. If it turns green then you've had an event and the protections have kicked in. No green is good! 3: You can grab the Overkill Solar app and have more control and n easier time seeing what's happening.
@DavidMcLuckie20 күн бұрын
Thank you.
@rksg200320 күн бұрын
You gave me confidence I can install my first BMS. IF David can do it so can I. Well maybe we shall see lol
@BenMitro20 күн бұрын
Was that a huge bang I just heard to the north east of me? Just kidding, take care, double check everything, then do a final sanity check and plug it all in. Make sure your hands are quite dry or you are wearing gloves. Next load it up and see if any connectors, crimps or terminations are getting warm. If so, fix them before proceeding. I have a big isolation switch as well as breakers very close to the battery positive and BMS negative.
Пікірлер
13:52 any idea if that battery pack with BMS salvaged from broken unit will work without that extra com cable or whatever it is connected with a different MPPT controller?
All the Vtoman power stations have jump start and extra battery features..It would be interesting if you do a teardown of the little Jump 600x and as you already have the jump cable, you could test the jump start on the little power station as well.
Not sure about the Flashspeed series but on the Jump series the last percent takes the longest. The display flashes when the power station is charging.
The firt press of ANY button turns the display on
Fantastic power station if you don't need to run a diesel heater. The jump cable is an optional extra but it's only £25
Just wanted to say your videos have provided me with invaluable info on getting my heater install perfect. Thanks mate 🍻 🇦🇺
are they heavy?
Nice! I would add some cross members for added security.
david you are the expert can you convert this to heat water.regards. declan
hi david is it possible to convert vervor diesel heater to heat water
Sort of yes. Bobil Vans make a unit that takes the hot air and turns it into hot water - www.bobilvans.co.uk/product-page/new-bobil-air-xchange
Hi David, great video thanks, do you have a video on removal of the window regulator?
Hi David can I only download the Hcalory heater app if I'm a patron?
Nope, on my website for all - davidmcluckie.com/download/hcalory-heater-app/
I like the small clicker with the cheap heaters. On/off, up/down 👍
Yes you can.
The initial reaction was a fairly convincing endorsement. Now I’m definitely going to have to order a pair just to experience a piece of that overwhelming silence. 😂
I Just bought the OUKITEL RT8 from OukitelUK. And When it came there was no stand or neck strap in the box. On contacting them they said they don't sell with these item. I have to buy these items separately. They don't say anything on the web page at all about this. So if you want the full package. BUY FROM SOMEWHERE ELSE. They were kind enough to send me a 10% discount on my next purchase which I tried to use on the items that were missing. And they said I can't use discount on these items. WHAT A CON THESE PEOPLE ARE.
0:52 did you say DEATH adapter?
Yes, gotta love those easily touchable live connections. :)
Any updates on the reliability of this pump?
I forgot to say, ref waste oil heaters etc, didnt use mine this year, got 8 old laptop batteries and 20 quid heated vest. Fantastic. Solar charges 4 18650s while the others heat coat. Defo recommend.
Thanks for the video. What paint did you use? I'm about to spray a 40ft container and interested in this unit
That was 'skip paint'. This stuff - www.ebay.co.uk/itm/313471507497?itmmeta=01HZ7PHXS8JNRZ8ZJZME09TFEA&hash=item48fc5b9c29:g:~2sAAOSw2YNgr3d-&itmprp=enc%3AAQAJAAAA4PJCFg4TTbJlvhotkG7I2E4%2FNYUhZi6vAK7DrHao8pv2iWhRXYslOvxNdfFT3uVLlUBaAOdycrFGF8OvK9AlBSulENcSYurdaRem%2FafmoG6K99mBowz0h3TtLiWg22%2F5ywhBXmWVer6hTGgN3419FxdaEcGD1zaPbtLC0E8xxmLmSVjNmrPduxF9KEDUeAoywa1Ctz2YZnO12q4ou0Q8FngAz56yG7bXUt4ZvEEYXV4KUe7LNxDi5M0lDZVVwsLtjTKvmB%2FfUW0DkPDGpwcgNrX3uYQDSfTFs7%2BR%2FtZz2X3E%7Ctkp%3ABFBM4NzH9vlj
😂 don't test airbag
Will the jump starter cables operate a diesel heater?
In theory yes. But as it's only using half of the battery pack my concern would be how unbalanced the cells would be after some time.
Jump start may be ok for a gasoline mini engine. But a diesel truck engine will pop the overload. There is a reason why diesel have a battery designed to give you a hernia. Your home is well equipped to give you a cup of tea. Till the mains juice up. It is always fun. When the power goes down. Your house is all lit up and watching a video.
I wish I had something big and diesel to test it on. There is a diesel forklift but I don't think the engine is very large.
@@DavidMcLuckie Now where's a train engine 🤣🤣🤣
Certainly could do with longer cables for the jump-starting feature, but a quick hack would to just use a set of standard jumpleads and clamp them onto the device's battery clamps, or just use one of the smaller packs instead... :P
Is there an extra charge for the cable from new?
Sadly yes, it doesn't come with it.
Do you sale anything when you finish with it and love wching your chail
Nice vid thanks for sharing. That oscilloscope looks useful. Can you give us a demo on it please. If it's old is there an updated version?
i assume it will work, but how about diesel engines? i only ask because i have one of those little jump starters and it works on any petrol thrown at it, but only some diesels. 1.6l van no problem, another 1.6l van and my 2l car no chance won't even turn the engines over a full turn before dying .
The little pin in the blue connector is for spark supression if fitted. It works similar to the spark suppressed XT-90 connectors. It should have a resistor from that pin to the main connector cable and a slightly longer pin on the other side of the connector to make connection first and allow capacitors to charge in connected equipment without an arc before the connector is fully seated when being plugged in.
Thank you, very useful information.
@DavidMcLuckie ... I despairingly searched for VTOMAN Flashspeed 1500 teardown (in KZread) and saw your Bluetti video which looked interesting ... and thankfully then I could see in other listings for you the VTOMAN! Yay! I want to take mine to pieces and wanted to find out more information first. :) Ha - though I wished you hadn't skipped over so many details of the disassembly. I think mine is an earlier model (bought last year) as I don't get the time-remaining on my display. I bought mine late last year I think it was ... maybe October or something (2023). My DC jack input is rated at 10A ... I think I've seen on later listings that's increased to 20A. I didn't get the jump leads either ... I think they get supplied with the jump series and not with the flashspeed series. I wanted one to use as a PC UPS ... hmmm .... I plug the battery into the mains and my PC into the Flashspeed ... yes ... it does work as a UPS seemingly very reliably. My PC power supply is a Seasonic Gold Focus one: Seasonic tend to have good hold-up times, so I'm not sure how long switch-over time is. The problem I have is that the mains charging keeps coming on very frequently keeping the battery at 99% ... 100%. There's no easy way to automate that not to be like that. And when I tested capacity in April-ish, - so 6-months ish of 24/7 operation, I found it had lost about 2/3rds rated capacity. I contacted the manufacturers and they suggested some charge/discharge cycles including some slower cycles etc. Experimenting, and after implementing some slower full discharge/charge cycles, I could just speed up to using a 2KW hairdryer (resistive load OK) and the built-in AC fast charging to go through cycle after cycle and the capacity seemed to edge back into 80% ... 90% sort of range at that discharge rate. (Maybe after 20 to 30 cycles). I never got around to a slower discharge cycle again to better estimate after allowing for inefficiencies etc. ... I'm not sure if the batteries fully recovered or not (I'm very busy). -- I wish these things could be set to charge to 100% periodically, and then discharge (via the load) to say 75%, 80% ish, and then stay on standby without recharging again until there's some brownout/blackout event in which case the "flash" in "flashspeed" might be useful between persistent bouts of energy disruption, or 'til the next timeout set for a calibrating 100% charge. I haven't found anything that does that. I wonder if I can force the VTOMAN to do that? @DavidMcLuckie - there's a challenge for you lol (and show me how to do it). :) I was hoping things might be modular and that I might be able to intercept some logic-level signalling without confusing the LifeBMS too much in the process. The CAN bus in the Bluetti looked opportunistically interesting. I like having battery/invertor etc. in one box and spec'ed well enough such that it ought to be able to power a nominal 150W load indefinitely without overheating worries etc., but I have yet to find anything on the market that does what I want it to do at the scale I want. LiFePO4 cells a must. Safety/longevity/reliability a must for unattended operation. -- I've tried using the (10A for me) DC input jack to offset my 150W ish nominal PC power draw so as to have slow discharges (manually) occasionally and that does work ... but ... over time, less so. It just doesn't notice the input's there sometimes. And the barrel Jack plug/socket would get very hot. That was off a Leicke 12V 12A high quality supply. I wonder if the upgrade to 20A if it's there in newer models mitigates that. From yesterday afternoon I tried using a Meanwell 48V 600W LRS series PSU with 12 awg cabling to a 30A PowerPole (Anderson) connector for the "solar input" (MPTT). Visually looking at the PowerPole connector in the device I guessed it to be 30A but it's hard to tell (30V min. input at 400W would be within 15A spec. so wasn't sure ... I'm going for 48V / less current). It seems to mate properly and I could feel no heat from the 400W transfer. So yesterday that 400W powered my 150W nominal PC with the 200W-odd balance going into charging the batteries. In a 21C environment the Meanwell fan came on periodically, and the VTOMAN fan was on but quite low and quite steady though the case felt quite warm to the touch. But then ... after reaching 100%, that power input was ignored 'til this afternoon. Despite variations of unplugging/re-plugging with large intervals, turning off the Meanwell PSU while still plugged in to the VTOMAN etc. This afternoon it's mostly been "noticed" I think ... BUT ... I don't think it offers pass-through of the 400W to my PC unless it's in charging mode. So it discharges the battery. I let it get to 49% before plugging the AC back in. I guess I need to revisit that logic level interception idea with AC input and presumably "switch over" from AC line in to the invertor (I assume the invertor isn't supplying the output current all the time when there's an AC input). So I can just disable charging when I want. Crossed fingers. I'm thinking of some simple LoRaWAN/optocoupled/ESP32 sort of thing for safety/reliability. Whenever I take things apart of this ilk (very very rarely) I'm always incredibly careful - I'd set-up some power-resistor thing for example to gently discharge any charge remaining in those big capacitors at the first opportunity just to be on the safe side. And I'd discharge the battery to about 20% first. You seem very brave lol. :) Thanks for the video - it has been helpful to me.
Looking closely at the video, it seems that the 4-pin (I think) JST (I assume) connector thingy going to the board besides the AC in / AC out has a 5V pin, an AC EN (enable I assume) pin, and 2 inner pins I can't quite make out 'cause of motion blur. I don't know if they comprise a bus or are just signal-level state thingies. I wonder if either of them simply controls whether the AC charges the battery or not? Since I can only see one other connector - a 2-pin connector for the battery. Maybe they're some kind of sense-pins and charging-current control is downstream of that battery connector? I'm wondering whether to open it up today, or wait for some 80V, 50A rated "ideal diodes" I'm ordering from Ali Express to arrive first - so I can just crimp some lugs on and and seat a pair of them in parallel, on that main battery cable, to prevent charging current. See if that upsets anything. I'm assuming the nominal battery voltage is along the lines of 52V+ but hopefully not higher than 80V peak. If the unit can operate despite not being able to charge, then I could just enable the charging with hefty heat-sinked solid-state relay. But I'm hoping that my agenda can be satisfied less intrusively, at signal level. That AC EN is exciting ... maybe I can utilise that to have the AC always come on after an extended blackout situation after unit shutdown, and additionally shut it off before the battery goes below 20% allowing for indefinite intervals pending power recovery.
I think I'll wait lol. I could do with another crimper, for battery lugs, and a crimper for JST and Dupont connections and stuff. I really don't want to have to take it apart more than once if I can help it ... I don't have the time, or the space to keep it in pieces. And I need it for my PC (which is setup as a server with Proxmox and PCIE passthrough for my Windows daily driver ... but I depend on my main PC for a bunch of IT infrastructure I have ... in my tiny terraced house lol). Yeah - I'll wait until I have all the parts I might need to avoid making a botched-job if possible. So I can wing-it depending on what I find. I can't really afford to damage this thing that cost me about £1000 at the time I bought it. Although, if I'm successful, I might get another one now they're cheaper and do the same to it. :) That'll cover the most of my UPS needs. I wouldn't attempt it at all except it doesn't seem to do a UPS job 24/7 without either BMS drift or possibly accelerated battery degradation being held at 100% all the time. I'll post here what I find when I get around to it. :) I'm still hoping other people will pave the way first. :)
I had another quick look at the video and thought to set the resolution higher this time (doh) ... and I caught a better glimpse of that connector besides the AC-IN/AC-OUT ... I see now it's not 5V but the GND for the 5V cct ... and the two inner pins ... well - I could just about see "RS48" it looked like so I guess that's for a RS-485 bus! That makes a lot more sense. I guess I'll need to try out a logic analyser on that then. Feeling hopeful now though ... if there is a bus there then presumably that means a lot of control and measure is available via the bus. And if it's RS485 then hopefully I can just make an extension to that connector and add in my own device. Woohoo!
I cannot find an automatic switch that handles DC to DC 48 v array 100 amps I am not using an inverter, I have two 48v solar battery array, I want to use one as a back up, the only item I have hooked to it is connected directly to the MPPT charger. I would like to switch automatically one battery power bank to another when the voltage drop, the switch’s I found don’t handle 100amp input. Any suggestions how to find? I don’t want inverters at all, it would not be necessary for my application, it would only add problems. Thank you
Why not use the small module to switch more powerful relays that match your requirement?
Can you stick your tongue on it?
Where did you find this reader doesn’t do ABS codes? I bought it as my 2012 fiat punto has check engine light on and giving ABS, hill holder, ASR and ESP faults, however this CR319 does not find any fault codes. I was hoping it was going to lead me to the fault with my car.
Non of these small readers I've had access the ABS module, they only read the basic P codes off the ECU.
Thank you for the video. Is there any chance to disable Bluetooth by disconnecting a Bluetooth module? Or is it soldered in the main board?
Might need subtitles. Love the videos, but I only speak English. 😉
What is the magic with the fans?
Good job mate. From Australia 🦘
Love it mate, from Australia 🦘
Does this 2kw heater use a .16 or .22 fuel pump?
It’s junk
Was on the fence about getting this unit, primarily for the UPS function, to power some network switches and my pc setup, however some reviews lean towards that part of the unit not operating properly, changeover times etc. Perhaps you'd be happy to check this portion of this unit out, once your jumper leads are in. Wonder if the capacity test improves after a couple charge cycles or is this due to the inverter efficiency? Might lean towards a different unit, any of the bluetti, ugreen or other units you've looked at take the top, from your experience? thanks
I shall add a UPS test to the next video.
never seen one cut out so quickly trying to start a diesel heater , most at least try lol , I can cross this pack off the list 😁
I need to test and see at what point it actually cuts out at.
It'd be nice to be able to change the charging rate on mains power so that you're not ramming power into the batteries, which shortens the life of the, low and slow keeps the lithium cells happy, though I'm not holding much hope of such a setting being available... :P
There is a few of them that doing it. The DJI I showed last time has two input options I think 600W and 1200W. At least one of the other big ones lets you adjust the charging power from the app, the DJI is on a nice physical switch.
Vtoman Jump series have a separate charger and you can use a lower powered charger.
Where u been man
Playing on bikes, the weathers been nice. :)
i would like to use this board on a 24v heater. i know the voltage devider will need to be modified, but im guessing everything else could remain as is? i know the mosfets are good for 100v. thanks for your advise.
Thank you . Is there a comparison between this and a phone that has a thermal camera? what do you prefer ?
It's your brush now. You break it you bought it.
48v electric go-kart, that's all I can think of right now, not practical, but probably quite fun for an idea... :P
So a couple things: 1: The balancing doesn't kick in until the cells are nearly full. You can tweak that point if you want to but JBD is pretty good. Don't panic. 2: The Protection switch on the first page SHOULD be OFF. If it turns green then you've had an event and the protections have kicked in. No green is good! 3: You can grab the Overkill Solar app and have more control and n easier time seeing what's happening.
Thank you.
You gave me confidence I can install my first BMS. IF David can do it so can I. Well maybe we shall see lol
Was that a huge bang I just heard to the north east of me? Just kidding, take care, double check everything, then do a final sanity check and plug it all in. Make sure your hands are quite dry or you are wearing gloves. Next load it up and see if any connectors, crimps or terminations are getting warm. If so, fix them before proceeding. I have a big isolation switch as well as breakers very close to the battery positive and BMS negative.