To jump in on the charger thing, one of the chargers that came with my Heng Long Jagdpanther fried, and the other is melted and on the way to frying. The stock chargers will work for a while, but I would not trust those suckers unattended. I had left mine charging on a book shelf and I'm lucky I didn't burn my house down.
I now have a Venom PR2 charger that charges all kinds of batteries.
Steve