I hear that battery maintenance is important part of getting the most speed out of your car, but i'm not really sure what a good maintenance plan is.

What is the best charge rate 1c, 2c, 10 amps, 25 amps, 40 amps????
Discharging rate???
Should i cycle my packs and how often?
Whats a good internal resistance for a pack (2s shorty lipo)

Any other tips that would help a racer get the most from their battery investment in terms of speed first and longevity second would be greatly appreciated.

Thanks