BATTERY GRIP FOR MTWMTW BATTERIES AS EASY AS 1 2 3! The MTW Battery Grip powers your MTW Spec replica with standard 3V 123 batteries! No more disconnecting and reconnecting LiPos, no more complicated rechargingsimply flip a switch for instant power! Get up to five times the capacity of a standard LiPo plus a longer lasting charge when not in use. Power up your MTW! Recommended to use with FRAC (Fixed Rear Airline Connector) or WRAITH X. Features Uses two 3V 123 batteries