is often Lipo 6750mAh 4S - 14.8V 55C constant 110C 5mm Bullets (Si-Graphene) Design proper 10 min long primary. The hardcase electric batteries weighs about 534g. pretty much 2 light weigh LCG pack battery power. Well suited for outside 1/8th scale rushing. Brand-new bullets connector make wiring more pro. Design to aim high KV rating motor.