I practice with 5500 mah packs that i custom build however I can not race with them professionally in ROAR or IFMAR due to over mm size. As for race packs?? I use IB4300 and 2 sets of 4200 with great digits. As for weight I see some have posted? I say if thats the case due to heavier cells???, loose a piece of heavy alloy here and there and go back to plastic. Once it breaks anyhow, it a trashed part...plastic?? a mere 4.00 piece and I can still finish the high mains or qualify. The battery weight isnt that much to worry about considering the run times us racers are getting out of these new packs!!! Its equal to removing a few stainless stock screws or a alloy battery strap thats all glam!!!!
Team Academy / MRC / Team1rc.com / Tekin