Consensus at our club is that charging at the maximum rates EG 5000mah at 5 amps , while not being excessive will shorten battery life , recommended by all is for a 5k mah, charge at 3.5 amps and use a GENUINE charger , Turnigy / SKYRC etc , the counterfeits will not have all the protection circuits . .
The genuine ones will also have storage charge capability + balance charging .
I'm new to LIPO batterys , but common sense is all you need , don't discharge cells to lower than 3 volts per cell / fit low cell alarm / use the correct equipment / don't drop /damage the pack /use heavy enough wire 14 g is a good start / use good ESC's & set the cut off to slightly higher than 3v and you should get years of service . . .
Be safe
Bill