I have had so many problems with these batteries it’s unbelievable… First I blew up a pair by charging them incorrectly in series. 50 bucks wasted. Bought a new pair of batteries, tried charging in parallel. They got super unbalanced and puffy. 100 bucks wasted. Bought a new pair, one arrived the old version and one arrived the new version. Had a problem where one cell was noticeably lower on each, was able to fix that with a slow charge. I went for a short vacation this past weekend but instead ended up spending my time on this forum, not because I wanted to skip waterskiing and wake boarding but because I got sick. Came home today and took a look at my batteries, I had storage charged them before I left. The newer version is perfectly fine, the older version did this:
125 usd wasted on these stupid batteries. This time I know I did nothing wrong, I kept such good care of this set it’s absolutely rediculous. Has anybody else had this problem? Is there a way to fix it? My main said 7.xx volts, so that one cell isn’t just not reading but it’s actually dead (it’s a 3s 5000mah 20c lipo battery). What the hell might have caused it?! I’m counting on these for my latest build (was going to use li-ion but ended up with these because of their small size), but at this point I’d rather just have different batteries. Does anyone know of lipos that are basically the same specs and size as these but from a different brand?