[JThiessen]

Set your charger on Nimh, 1.0A or less, and charge it for a bit to see if you can get it up. Once it gets up to nominal, set your charger back to LIFEP04 and charge it. Then balance it again. I've done it with several A123's I bought from HopmeUp (their warranty is just as crappy as HC's - 'cept they will ban you from buying from them if you complain!!!). Oh, and disconnect the balancer when you do the Nimh charging.

Are those packs 3S1P or 2P? Problem I had with the A123's is that I couldn't
"see" the bad cell since they were 2S2P. Had to completely take them apart and measure the cell voltages. But I learned a lot about putting packs together!