might be a dumb question but since my backdraft will take 2 lipos do i need to buy 2 of those or does that 23.99 i see buy both? im guessing ill need two of those which is ok since the price for a 30c 5200mah is cheap. just makin sure cuz those links show one but not sure if thats just for the picture. or if my buggy takes 2 lipos i should get two. total of like 50$