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Witty Fox

Witty Fox 3.7V 10400mAh Li-Ion Battery

Witty Fox 3.7V 10400mAh Li-Ion Battery

Regular price Rs. 734
Regular price Rs. 1,055 Sale price Rs. 734
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  • This is Witty Fox 3.7V 10400mAh Li-Ion Battery
  • Slim and lightweight Li-ion battery with high energy density
  • Outputs a nominal 3.7V and based on polymer lithium-ion chemistry
  • Requires specialized Lithium-Ion battery charger for charging
  • Built-in protection against over-voltage, over-current, and minimum voltage
  • Caution advised when using in wearable projects due to risk of short circuits
  • Suitable for a wide range of applications, including GPS devices, tablets, MP4 players, DIY power banks, Bluetooth speakers, IoT devices, and industrial applications.

Witty Fox 3.7V 10400mAh Li-Ion Battery

This 3.7v Lithium-Ion battery is a very slim, extremely lightweight Li ion battery based on the new polymer lithium-ion chemistry. This is the highest energy density battery currently in production. Each cell outputs a nominal 3.7v. These batteries require special charging. Do not attempt to charge these with anything but a specialized Lithium-Ion battery charger.

This Li ion Battery includes built-in protection against over-voltage, over-current, and minimum voltage. Please use caution when using this battery in wearable projects. A short in the thread can create sparks and heat when using conductive thread.


  • GPS Devices
  • Used in Tablets and PC
  • Used in MP4 Player
  • Used to make DIY power banks
  • Used to make mobile backup power supply
  • Used to power Bluetooth speaker
  • Used to power IoT Devices
  • Industrial applications


    • 1 x Witty Fox 3.7V 10400mAh Li-Ion Battery


    Brand Witty Fox 
    Voltage 3.7V
    Self–Discharge < 2% per month
    Storage -20 to +55°C
    Charging Regulated DC, CCCV 4.2V
    Battery Capacity  10400 mAh
    Battery Type Lithium-Ion
    Dimensions  73 x 20 x 70mm
    Weight  200 grams

    Shipping & Returns

    • All orders confirmed before 3 pm IST are shipped on the
      same day, barring rare pickup delays on holidays or disturbances
    • Delivery time in Metro cities is 1-3 days, Others it is
      3-7 days. It varies based on location, reliant on courier services
    • Return window: 7 days from receipt unless stated
      otherwise. No refunds/replacements after
    • Returns only for non-working/damaged products are accepted
    • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
    • Refunds are processed within 3-4 working days post inspection and approval.

    For more details, please check our Shipping and Return Policy

    View full details

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    1. What is the difference between LiPo Battery and Li-Ion Battery?

    • Difference  Between Lipo battery and Li-Ion Battery:
    Lithium Polymer (LiPo) BatteryLithium Ion (Li-ion) Battery
    Lower energy density Higher energy density
    High PriceLow Price
    Approx. 75% to 90% efficiencyApprox. 85% to 95% efficiency
    Used in power banks, mobile, laptops, Surveillance devices etc.Uses in Drones/quadcopters, Vehicles, etc.

    2. Which battery is suitable for making Power bank?

    • Powebanks are usually made of Lithium Ion Batteries. Lithium ion batteries are well-known for their long life and versatility. Li-ion cells are smaller and lighter than other cells, almost the size of a credit card, and have a slightly higher specific storage capacity. Lithium Ion batteries have very high energy density and the least self-discharge rates that make them ideal for a power bank which has the objective of storing large amounts of energy. Besides, they have an efficient and fast charging ability that adds to the advantage. 

    3. Is Lithium Ion battery Rechargeable?

    • Yes, A lithium-ion battery is a type of rechargeable battery in which lithium ions move from the negative electrode to the positive electrode during discharge and back again during charging. The Lithium Ion battery can be charged using a TP4056 Lithium Battery Charging Board. Chemistry, performance, cost, and safety features vary among lithium-ion battery types. Lithium battery charger-to-battery ratio is based on 30% for maximum performance and life.