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A 4S will fit in one of these. https://www.batteryspace.com/plastic-enclosure-180-x-79-x-170-mm---perfect-to-build-12-8v-20ah-prismatic-battery.aspx Add some 1mm EVA foam and this is rock solid.

I am going to try and design a PCB that will connect like this -- See video (Some Korean builder). Probably another week or more before I get the prototype sent out for manufacturing. View: https://www.youtube.com/watch?v=bFHrCq2O_GM I made a little 3D holder for the compact cells, but...

Sorry this is long --- These are from RAM Etorque systems.... Here is how they work - DESCRIPTION The Battery Pack Control Module (BPCM) is one of the Battery Management System (BMS) components on 48 volt e-Torque equipped vehicles. The BPCM is integral to and serviced with the Power Pack...

Schneider Electric XW Pro

BCH has some other larger A123 20ah cells coming in the next few weeks These other ones are a little thinner.

Hey all - Not sure if you saw this from Battery clearinghouse but these cells are legit! From the ones I received I think this are new old stock from 2020 and they are selling them off. I bought a bunch of them and so far they tested exactly at 20ah. Now to find the supplier of those little...

Hey Andy - how is your build fairing? I am up here in Norcal Sacramento area. Keep pulling those batteries! That looks like a good pack and if you can get more that is a great plan. That blueish goo on the side of the battery is leaked electrolyte, so don't touch that unless with some gloves.

All Sold! Thanks RustyBEW.

Well time to clean out some old projects - All located in Newcastle California - prefer local pickup if possible. This is almost 10kwh worth of cells :). I have 48 medical ventilator battery packs that are Philips 14.4v packs each holds 20 Sanyo white top li-ion 2200mah cells. Each pack is 163...

So I have a new to me inverter that I picked up for pretty cheap and it is giving a error code. So once I got into the inverter I noticed that the Power bridge board is nuked with a few burned up mosfets. I tried to google the part number but haven't gotten anything? Any one here know where I...

Ohhh and A123 4S14P inside... Oh and please for NEC's sake don't take or post picture of the BMS.

The best SMBus to Arduino reader so far.... Might need to change a few settings but this is a great framework. Dont worry about the screen crap, just use serial monitor.

Here are the locations to drill the small hole. This will give you access to the Buss bar internal to do a manual charge. Once up to say 10V it should turn on to charge from the terminals. RE Arduino, most SMBus units need the handshake to wake up. Send a 0X80 command to it and it will...

It is permanent.... there is no way to "reboot" from outside the battery. You can drill a 3/8" hole in the side of the case, and manually charge to 10V and it will turn back on, reboot and everything should work. The problem seems to be that if the cells are low they almost always go to a...

Any word on the batteries? I am curious about how they turned out? I might be interested in them even if discharged.

Hey Wolf - Where are you located? I have a few of these that I bought that are dead. Keep them charged. I might be interested if the price is right

I am down! Let me know how much to ship to Zip95658?