raschemmel:
We have purchased rechargable 11.1V 1450 mAh C 25 Li-Po battery and will use this.
Do you have a Lipo charger ? If you try to use some other type of charger and overcharge the Lipo battery it will catch fire.
http://www.amain.com/team/2012/02/the-dangers-of-charging-lipo-batteries/
Our friend knows how to charge safely and has a good quality charger. He recharges it for us