• High Capacity Upgrade Battery: 3.7v 850mAh, Max Discharge Current Magnification: 25C, high drain lithium-polymer rechargable battery, guarantee more power and flight time
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  • Overcharge and Short-circuit Protection Design: Aim to protect the battery from damage in the process of charge and use, 6 in 1 Battery Charger:Charging 6 batteries at one time, greatly improve charging efficiency
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  • Suitable for: MJX X400 X400W X800 X300 X300C X500 HJ818 HJ819 Sky Viper S670 V950hd V950str HS200W National Geographic RC Quadcopter Drone
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  • Product Size: 45*25*9mm/1.77*0.98*0.35 inch. Product Weight: 20g/0.7 oz Battery Lasting Flight Time time: Around 10 mins
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  • Package Included: 5Pcs F.Dorla 3.7v 850mAh 25c lipo battery, 1 x 6in1 JST charger
    • nSpecification:
    *Brand: F.Dorla
    *Chemistry: Li-polymer
    *Voltage: 3.7V
    *Capacity: 850mAh
    *Discharge:25C
    *Charge Plug: JST
    *Single Battery Charging time: around 110 minutes
    *Single Battery Working time: around 10 minutes
    *Battery Dimension(1pcs): 45x25x9.mm/1.77x0.98x0.35inch
    *Battery Weight(1pcs): 20g/0.7oz

    Compatible with these models:
    MJX X200
    MJX X300 X300C
    MJX X400 X400W
    MJX X500
    MJX X800
    Sky Viper S670 S1700 V950
    Akaso K88

    Please Notice:
    1.Don't over-charge, or over-discharge batteries.
    2.Please stop charging immediately when the cell voltage been charged to 4.2v (Normal cell voltage is between 3.7v~4.2v).
    3.To double make sure safety, please have a check first whether the battery surface is alright when you get it and whether the voltage is normal before using.
    4.Input voltage:5V Input current:2A,Do not use the adapter of over 5V to charge the batteries

    Package Included:
    5 x 3.7v 850mah 25c lipo battery
    1 x 5in1 charger
    5 x JST plug wires

    6 in 1 Charger for 3.7V Lipo Battery:
    •Voltage Input: DC 5V, 0.5~2.5A
    •Voltage Output: DC 3.7V
    •Compatible Battery Type: Lithium
    •Red Lights on: currently charging
    •Red Lights off: charging complete

    **Place your order now and buy with confidence.If you have any problem 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!