maxamps 4s lipo good?

[Revo_crazy231]

not trying to thread jack but do u have the choice of running 1 pack or 2 or is there diffrent setops i plan on gettin a mm w/ an 8xl but if i get the 7.4v lipo maxxamps 8000mAH should i get one or two????

i want good speed and long runtimes if possible

thanks and again sry im not trying to take over your thread