i need to know some stuff about the batteries you sell.

1) what should i run these maxamps 11.1v batteries with? do i need a bec, balancer, what?
2) if i need these things, how much would it cost if i were to buy the ARTR e-revo kit with these?
3) the ARTR kit doesn't come with the power source? how much would that cost?
4)what is "puffing"?
thanks!