here i have a 36 volt ebike battery /mobility scooter/golf cart. its 3 12 volt cells wired together so could be used for either ..i purchased these on the 22 july 2016 and have only charged them a handful of times there just too big to fit on my bike and too heavy for a back pack they cost me 95 quid i will take 50. there in a 36volt pack atm but easy to split in 3 cells if thats what u need