Thank you <b style="font-family: verdana, arial; font-size: 11px;">nitrosportsandrunner.. i charge for 6 hours the NiMH 1800mAh battery.[/b]<font face="verdana, arial"><span style="font-size: 11px;">i have already ordered the 2 x GENS</span></font>5000mAh 40C + VENOM lipo charger.. i don't know how much good it is the GENS batteries..A friend of me told me that is a good battery.. can i ask something else? can i use arechargeable battery AA for my RCR-2C<span style="font-family: arial; font-size: 13px; line-height: 15px;">RADIO RECEIVER 2.4 GHz? TY A</span>LOT..