1958greyhound said:you can charge them at 1c
capacity was checked at .2c
you will end up getting 1000-1500 mah out of them
so lets say 1250 (middle of the road) and I need we think 200amps peak, 100amps avg, so 100amps/1.250=80 cellsin parallel
so 14 rows (series) and this duplicated (parallel) 80 times... Holy Cow,
Then factor in I need 200amps peak, so that pack at least 50% larger now we are talking about 160P I see why someone mentioned looking at larger cells! Perhaps a cart is not a good idea for a Li-ion project?
daromer said:20700 is a different size of cell
Well since I don't have anything at this point I would try anything if it makes sense. So if you had to do this all over again with all you know and have been thru would you build the packs and solder them, or weld them, or just by them pre-assembled? What is a basis must have tool/setup for someone wanting to get into this and grow? Seems to make sense to follow the advice of someone here vs starting from scratch and buying junk that you throw away in 3 months when you learn there are better ways of going things and better tools, etc..