so it's safe to run the charger (just purchased the celectra) of the 12v battery in my glow field box?

i have a couple foam models and picked up a pixie20 esc and TP 2S 1230mah lipo.

i've been afraid of charging since everything i've read says use a 13A power supply, and my extra pc power supply is only 4.5a.

i don't know anything about lipo yet, but i assume that for a 1230mah pack, you would only need 1.5amp or more 12vcd input. is this correct?

back to the flight box. any idea how often i'm gonna have to recharge my glow cell?

thanks,

- skellum