Thats cool, I often thot about doing something like that also for my 3pk, but didn't like the thought of having to make a custom battery cover, and definately didn't want to pay the 100 for futabas lipo pack, then I came across thsi wbsite
http://www.virtualhobbyshops.com/pro...roducts_id=697 haven't actually bought one yet!
E-revo MMM 2200 6s zippy 50MPH of pure fun and parts destroying powa!
Futaba 3pk more controller then anyone person needs
TC5 top speed drifter 21mph on crappacks and 40 on calc