So i just picked up a smc 5000 2c 7.4v battery and a Triton lipo charger , what scroll to lipo menu, it only allow me to set the battery capacity which i select 5000 and charing rate ( 3.7 , 7.4, 11.1 etc ) it does not ask me enter number of cell etc...

my question is what charging rate should i select if i want to safely charge my 5000 2c pack ? should i use 3.7v or 7.4v?

and my charger comes with balancing port, do i need to balance my pack every time i charge ? can i charge and balance at the same time ?
thanks for all your help !