sea jump Model Helicopter Battery 6PCS 37V 750mah and 6in1 Charger for MJX X400 X800 X300C X500 Fouraxis Aircraft Battery

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.