matt, go for 2 of these wire them in series

http://cgi.ebay.co.uk/8-4V-3300mAh-NiMH ... 564093b27c

that will work well for you. just check with someone on here your electronize can take the voltage coz i dont know that one. you would want to change the tamiya connectors too, use your deans connectors instead.


this is how you wire batteries in series in case you didnt know, double the voltage :-)

http://www.google.co.uk/imgres?imgurl=h ... 24&bih=587