Cheerwing 4pcs 3.7V 550mAh Lipo Battery and 4-in-1 Charger for Syma X5 X5C
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Amazon.com: Sky Viper Drones Batteries Set of 6 Batteries 3.7V 1200mAh Works for Any Model : Electronics
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Amazon.com: FPVERA 2PCS Drone Batteries 3.7V Lipo Battery USB Charger and 650mAh Lipo Battery with Battery Charger for SYMA X5 Serial UAV Drone Quadcopter Rechargeable Battery : Toys & Games
5pcs 3.7v 800mAh Lithium Battery with 5-in-1 Charger for Syma X5C X5C-1