These LiFePo4 cells
. Check out my pictures here
I made modules in 6s. each stack is 16s and I have 4 stacks for a 60V 22ah pack. I am using the SLA "on board charger" ( I just keep it in the storage box) and a SDT SC620 with PSU to balance. No BMS because the project was just a test to see if I could make something and the results were good. I Improved range to 40 miles it was like 20 before that. The handling was what surprised me the most, it is so much better with 1/3 the battery weight I had before.
The cons are the voltage drop is pretty bad and they are hard to access for balancing because they are deep in the bottom tray. My modules and wiring are sketchy to say the least...borderline dangerous.
My new goal it to try to find LEAF modules for < $55 (its possible just saw a battey pack sell for $2500). I need 8. My weight will be the same as with SLAs again, but the range will be 60-70 city miles on a charge and much less voltage drop. Hitting the voltage cutoff is so annoying. I should be able run full throttle with the leaf modules for an hour, 2/3 longer than present. This
guy put some in his moped. They take up the whole storage space they come out easy by the looks of it. I have a rear storage bin so that helps and surf rack haha. Soooo got any leaf cells? or need advice on making a quick and easy but potentially dangerous pack?