2 of my feathers run on batteries from these guys, one of which is using 24v Gold motors.

Vapextech:
http://myworld.ebay.co.uk/vapextech/?_t ... 4340.l2559

The charger i'm using is an iMax B6, which has had a few complaints about it as far as LiPos are concerned but for NiMh I haven't had too many issues with it.