Quote:
Originally Posted by redshift
Linc I'd like your input on this- first off, I was under the impression that the Maxamps 2S 6000 were a 2 cell, they're 4 with 2 paralleled. So my first thought is how the hell can you balance these at all with their setup 
So I ran my packs down to about 7.1 on one run- not even close to cutoff, they flatten out enough that it's noticeable anyway but sure enough one is a little swelled- kinda knew it'd come with all the fun stuff I've read about Maxamps, but still it blows- especially considering I had to send 2 packs back a few months apart to GET two packs that were good. The first order one pack was at 4.2v, went back immediately, then a few months went by and the third one wouldn't balance, it was long enough that they felt the need to charge me more for the fourth replacement, so I paid around 3 bills for two packs- don't I feel smart for not finding RCM sooner..... the real issue was fitment in my mute, it was built for 6 cell packs and I had few options, but never again...
Anyway rant over, do you think this is ok to trial run? I charged it up full and it is balanced, but I wonder if it's worth trying. The other thing is these like peckmarks around the perimeter of the puffing, have you seen that alot? And the bottom cell seems very slightly puffed, should I just dispose? |
Hmmm, your pics are not really clear enough, can you take a pic on the side of the pack so I can see how puffed the cell is?
As for paralleled cells, they will work properly if and only if they are matched correctly. Maxamps told me they matched their cells, and I say that they are full of shite. I had a tech at flightpower explain their multi step matching process...I doubt that maxcraps has anything like that.
So my advise is to sell the maxamps packs that are still good. If your setup is ok with those packs, a pair of trakpower or other decent enerland hardcase packs will do fine, even at around 5000mah. Those will outperform the maxamps 6000 packs, which are 15c packs at best.
Stay away from parallel packs, only decent ones I have seen are the true rc 8000 packs.
They most likely puffed due to over discharge, and poor matching. The weak cell in the paralleled pair could not handle the discharge amps and most likely puffed due to that.