Package includes:
6PCS battery
1PCS charger 1 charge 6
3PCS conversion line

BATTERY SPECIFICATION:
Capacity: 750mAh
Voltage: 3.7V
Charge Time: between 60-80min to fully charge.

Battery Compatible with these models:
MJX X400 X800 X300C X500

Battery Charger Features:
Light weight and super easy to use

LED Status:
Red Lights on: currently charging
Red Lights off: charging complete
So when you find the light is not bright,pls don't angry.Maybe batteries are fully.