Holy Stone 1 PCS 7.4V 2800mAh Modular Rechargeable Li-po Battery for HS700 RC Drone Black
Package Includes: 1 * 7.4V 2800mAh Li-po Battery
Battery Voltage: 7.4V ; Max Charging Time: 5-7 hours; USB Charging Cable Voltage : 5V
Charging Status: At the beginning, the green light will flash slowly and the red light will be on. When the battery is fully charged, both red and green lights will be on.
After connecting the Battery, Charge Transfer Box, Balance Charger, and USB Charging Cable, connect the USB Charging Cable to the power bank or a phone adapter to charge (5V, 1-2A)