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🎁Best Choice as Gifts:Exquisite and Thoughtful package,High Cost-effective Battery.Enough Power for your flight.
Compatible with MJX X400 X400W Holy Stone X300C X400C X800 HS110 HS200 Syma X56W Sky Viper S670 V950hd V950str s1750 Drone.Product size:40*25*9.5mm/ 1. 57 x 0.98 x 0. 37 inch Weight: 20g/ 0. 70oz.
Notice that the lights of charger will be off while the batteries are charged fully.Stop charging automatically when batteries energy full.It's safe to use,over charge protection, Short circuit protection.
Package including: 4pcs batteries(JST), 1set 4-port charger,4pcs adapter cables, 1pcs usb cable, can charge 4 batteries at one time!The charger have a very good connection with each batteries.
Warranty: 6 Month Warranty. We provide friendly after-sale service and no risk refund for our customers. If you have any issue,please contact us and we will try out best to slove your issue!

Description

6 Month Warranty.If you have any issue with our products,please contact us by email or ask the question on the product page.We will try our best to solve your problem!

3.7V 850mAh Lipo Batteries for MJX X400 X400W X300C X800 HS110 HS200 Syma X56W Sky Viper S670 V950hd V950str RC drone
This 3.7V 850mAh LiPO battery is a replacement battery.
It will give more PUNCH and ROBUST performance due to its higher current output and power.
Direct replacement battery for MJX X400 X400W X300C X800 HS110 HS200 Sky Viper S670 V950hd V950str s1750 RC Quadcopter, no modification is needed.

Specification:
Voltage: 3.7V
Capacity: 850mAh
Battery Type: Lithium
size:40*25*9.5mm/ 1. 57 x 0.98 x 0. 37 inch
weight:20g/ 0. 70oz

Package included:
4pcs*3.7v 850mah lipo battery
1*X4 charger
1*usb cable
4*adapter cables

Reminder:
First,plug in the battery
Second,plug in the USB cable

Compatible with these models:
MJX X400 X400W X300C X300 X800 X500 X200
Sky Viper S1700 V950hd V950str HS200W RC Quadcopter

Tips:
the battery is thicker than the original battery for sky viper v2400.
When it is put into battery compartment ,it is very tight .
If you are willing to modify it ,you could buy for sky viper v2400

LED Status for charger :
Red Lights on: currently charging
Red Lights off: charging complete

The instruction for charger:
1.Please inspect the batteries for any damage or swelling before charging
2.Plug all the connector of batteries or the connector of the converting wires into the port of charger completely
3.While the light is off ,it indicates that the batteries are fully charged.While the batteries are full,Please unplug the adapter at once

Kindly Remind
Please feel free to contact us if you have any questions, wish you have a nice day!