Work for Holy Stone HS100 and HS100G RC Drone Quadcopter
Package Includes: 2 * 7.4V 2500mAh Li-po Batteries, 2 * USB Charging Cables
Battery Voltage: 7.4V ; Max Charging Time: 3-6 hours; USB Cable Voltage : 5V
Charging Status: At the beginning, the rightmost light on the battery blinks in blue and when the battery is fully charged all 4 lights turn solid in blue.
Charging Method: Connect the charging cable to PC USB port or a phone adapter (5V, 1-2A)