Amazon.com: Synergy Digital FPV Battery, Compatible with Syma X5UW FPV, (Li-Pol, 3.7V, 1200mAh) Ultra High Capacity, Replacement for Syma LT124RX Battery : Toys & Games
3.7V 850mAh Lipo Battery For Syma X5 X5C X5S X5SC X5HW X5HC X5SW M68 X300 X400 X500 X800 HJ819 3.7 V 850 mAh 802535 30C T84C