NOTE: Before purchasing, please note that the battery size and plug are suitable for your RC device, JST plug, this battery is compatible with most quadcopter batteries MJX Syma Holy Stone Sky Viper RC RC Drone X56W X400 X400W X300C X400C X500 X800 HJ818H J819S HS110 HS200 S670 V950hd S1750 V2450 RC RC Drone,Quadcopter,Glider,Electric Toy Battery (Only voltage, size and plug match for installation)

Battery Voltage: 3.7V
Battery Configuration: 1S
Battery capacity: 800mAh
Discharge rate: 25C
Battery weight: 18g/1PCS
Battery Size: L1.73(in) X W0.98(in) X Thick0.31(in)/44X25X8mm
Discharge connector: JST plug
Charging connector: JST plug
Battery Chemistry: Lithium Polymer

Charger Description
Product Name: 3.7V USB Smart Charger (1 Drag 5 Charger)
Input parameters: DC 5V 2-3A
Output parameters: DC 3.7V 500mA
Plug Model: 2-pin balance charger plug
Rechargeable battery: 1S 3.7V lithium battery Li-PO/Li-ion

Charging instructions: charging cable connected to the power supply, access to the battery charging, the red charging indicator light is always on, fully charged red light off.

Battery precautions:
1. Turn off the device when the battery is low to avoid deep discharge.
2. always disconnect the battery from the device when not in use.
3. Do not use or charge the battery if it is gassed, swollen, leaking, overheated or any other abnormalities
4. Never disassemble, puncture, shock or damage the battery. Do not ignite the battery.
5. Do not overcharge the battery. Improper use, such as short-circuiting or overcharging, may result in explosion or fire.