Yea that charger will do for starting out,

but with being rated at 50w max it will take around about an hour to charge one battery,

Using a parallel charging board to charge two packs at once will not shorten the charge time with that charger,
So it'll still take near 2 hours to charge 2 batteries, either way

I just recently changed to this charger,
http://www.hobbyking.com/hobbyking/s...er_w_acc_.html

Although I already had a power supply to run it off, as it doesn't have mains power capabilities,

It can charge 2x 3s lipos at once or 3x 2s lipos using a parallel charging board,

This will charge the 2x 3s lipos in less than an hour.