U839 Spare Part 2pcs 3.7v 150mAh Batteries with 1 USB Charger Cable for UDI RC U839 Nano Quadcopter;

From the Manufacturer:

1. 3.7V 150mAh lithium batteries for UDI RC U839 Nano drone.
2. High quality and lightweight,practical.
3. Rechargeable battery and works perfectly with the drone.
4. High capacity and long service life
5. Provide your drone continuous power for steady and well-balanced flying

LED Status:
• Red Lights on: currently charging
• Red Lights off: charging complete

Specifications:

1. Model: U839
2. Type: Lithium-Ion
3. Suitable for: UDI RC U839 Nano Quadcopter
4. Color: Silver
5. Capacity: 3.7V 150mAh.

Package Includes:

2 x Lithium-Ion Batteries
1 x USB Charger Cable