[cosworth34677]

im' useing two types. for more power i run a 4000mh 3s lipo. its a small soft case battery for airplanes, but i can get a 2hour runtime out of it. thats longer then i me in run time i get bored by then and go home.
i also use a 4000mh 2s lipo for cars and trucks hard case pack. and i get about 1 hour 45 min out that. i use that for my dump bed because it's esc is rated for 7.4v.

both power the truck and dump bed and stuff at the same time. i also use two 3s 2200mh in my excavator. but that a hard to explain setup, i hpoe that helps.