guessing esc is a part ur all referring to. the battery ive been looking at is here but might be reading it wrong http://www.redcatracing.com/RC-Cars/.../Tenergy-11233 .really just starting to get into all this but the backdraft looks pretty fast and seeing even better batteries makes it hard to stay with stock. not sayin the stock wont be enough for me id just like to have a spair pair and if they are better then why not get the best. i dont want to fry anything though cuz ive done that trying to overclock my cpu so i know how that story goes lol. thanks for all the input guys and not making me feel like an idiot. just trying to figure out how to read all the numbers and whats best for the car and best performance. again ill post the two batteries ive been talking about. http://www.redcatracing.com/RC-Cars/.../Tenergy-11233 ... the stock is i think http://www.redcatracing.com/RC-Cars/...arts/BS803-028