Li-Po?

[MetalMan]

C rates don't mean anything without the capacity factored in...

If you have an 8000mah 8C pack, that can handle 64amps continuously. If you have a 3200mah 20C pack, that can also handle 64amps continuously. The 8C will obviously give you more than twice the runtime, but it will also weigh more. My point is that C rates aren't all that important. Don't go out and buy a pack just because it says 15C or 20C.

I run an 8C 5400mah (43amps continuous) in my 1/8 buggy, and that holds up fine. Recently I bought an 8C 6600mah battery that I have yet to try.