DrkAngel wrote:JoramsWeapon wrote:The packs I had used silicone wire at 14ga. Each brick was 5S 5.7ah 20C, 12 of those bricks were arranged as 10S6P. I'm counting by lipo brick not cell, but yes 60 individual cells total. Each brick had trouble delivering 10amps, I got about 3/4 capacity on the discharge but the amount of heat generated was alarming. Even so I figured that in 6P configuration the bricks would hold together fairly well under ebike conditions, failed miserably. I actually did the same thing you're doing now by stuffing them into an Ezip case, everything was cool until I hit the throttle .
The batteries that managed to survive that quick run now power my laptop for many hours, a much more sensible application i think .
How did you manage to fit 60 cells into an Ezip case, when I can barely squeeze in 30, of the same size cells?
Easy! Two cases . Was a real tight fit though, barely had room for a little foam padding. I also sliced the cases' innards up quite a bit by getting rid of that middle portion and its attached threads with a rotary tool, the pack was so much lighter than the SLA's I didn't think I'd need all 5 screws. I had removed the SLA charging port and ran the charging leads and balance wires out that exit. If I had the opportunity to do it again I'd fill the case with LiMn Konions, you could easily cram over a hundred cells in there and still have some room to spare and you'd save the hassle of having to solder in balance wires.