Originally Posted by LOSIRACER77

question ??????? so if i buy a high c rated pack -like 50 c 4s lipo is not the going to help any thang, like heat

Yes, it will help lower the temp of the battery because the higher "C" rated packs have lower internal resistance.

what mah 5s lipo do i need for a buggy to run 15 minuts?

Id start with a 4000mah and see where that gets you.

so i guess a 3s 5800 lipo will not lower any heat in the speed control or motor?

Compared to the higher cell counts, no.