Holy Stone 4 in 1 Battery Charging Hub with 3 3.7V 1000mAh Modular Rechargeable Li-po Battery for RC Quadcopter Drone HS200D Red Go to amazon.com Related posts Top recommendation for 3.7v 1000mah battery FeatureOnly for Holy Stone HS200D Red RC Drone QuadcopterPackage Includes: 1 * 4 in 1 Battery Charging Hub, 3 * 3.7V 1000mAh Li-po Battery DescriptionHoly Stone 4 in 1 Battery Charging Hub with 3 * 3.7V 1000mAh Modular Rechargeable Li-ion Battery for RC Quadcopter Drone HS200D Red