Valken 11.1v 3000mAh Li-Ion Nun-Chuck Battery 0.23-0.43g Biodegradable and the green gass is

and the green gass is loaded into the bottom of the grip

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Valken 11.1v 3000mAh Li-Ion Nun-Chuck Battery 0.23-0.43g Biodegradable and the green gass isValken 11. 1v 3000mAh Li Ion Nun Chuck Battery. Should fit in most crane rear stocks for the M4. Comes in either tamiya or deans (T Plug) connector type. A massive 3000mah of juice for lots of long lasting firepower on the battlefield! Requires LiPo specific charger. Charge into 4 prong balance plug ONLY (not in the Tamiya deans output connector!) with a lithium style LiPo charger. 35A output (peak) and no memory effect with Li Ion technology.