The reason I went with these was that they seem pretty well built and have good cells. I was thinking worst case I could just swap out the BMS for one that works well (so far I haven't found one I trust) and have a really good system. Or perhaps get a firmware upgrade for this one.
Mine stayed fairly balanced until I started putting real world loads against them. Do you have your batteries setup with the master/slave cable and settings?
Mine stayed fairly balanced until I started putting real world loads against them. Do you have your batteries setup with the master/slave cable and settings?