Hey, does any one have information as to weather this would be a good choice for building a battery pack? As I am new to this have never built one before. It looks to me if my math is correct that 16 batteries would result in 52.8V and 36.8Ah’s. Could use some help on this. It seems too good to be true as they are around $8.00 bucks each and would be a very light and small battery pack. To good to be true??? Or…..