Holy Stone 4 in 1 Battery Charger and Rechargeable Li-Po Batteries 4Pcs 3.7V 650mAh for RC Quadcopter Drone HS110, HS200, HS120, HS130

How to Charge: Insert the USB charger wire into the battery plug, and connect the other end to your computer USB port or an adapter (5V,0.5-1A) to charge the battery. Charging time: 60 to 90 minutesCharging Status: The indicator light on the...