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Thank you very much for the charging sheet info! Knowing where to even look is one of the many places where I don't even know where to start. Eeek!!! I hope you aren't suggesting tearing the 14 packs apart into individual cells?? I think i need to do some more research so I can ask more...

So, for a 24v system, I would get a BMS on the 7 pairs of banks?

Thanks for the response! The banks are 11p4s

I too am a bit confused... guess that's obvious. :) Hope i didn't post in the wrong section! I see there is a second life section now, sorry for being so new. :oops: Is it possible to move? or should I repost? They are A123 cells, in one of their boxes from... '07? Here's the outer case...

So, sounds like in battery speak, that subsystem is a 4s11p, or is that 11p4s? I'm really concerned that balancing will be an issue, as they are already assymbled. :)

Hi all, So, I have a used one of these: The sticker on the outside says it's a 188v, 25Amp hour system, and my goal is to turn it into my 24v backup battery system. The thing has been sitting for... well... I've owned it for 5 years, and i think it was pulled out of service a few years...

Ok, i see from other posts, that i should just gauge the wire properly. Thanks to those of you that read my diatribe. ;-)

Hi all! noob here. I'm so happy i found Will on YouTube! Ordered a ton of parts yesterday... so the fun begins later this week. My biggest question right now concerns the distance between the panels and the controller. I'd really like to mount them to my shop roof, which means 15' down, and...