4400mAh 7.4V 2S2P Flat 18650 Li-Ion Battery

£25.99

  • 4400mAh & 7.4V power provides long-lasting energy for RC applications.
  • Reliable performance and extended battery lifespan.
  • 18650 cells offer high energy density with stable output.
  • 2S2P parallel design doubles capacity while maintaining efficiency.
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  •  This pack is made to order

    Please Note

    These batteries are made to order, so may require additional production time. Get in touch for a more accurate estimated delivery timeframe

    Made-to-order packs can only be returned if a manufacturing fault is present.
    Once production has started, orders cannot be cancelled—please contact us as soon as possible if you require any amendments.

    If you wish to return or cancel an order without a manufacturing fault, this will be at Overlander’s discretion.

  •  Delivery & Return

    Delivery

    We aim to dispatch all orders within 1-2 business days. Please allow additional time for custom orders. During peak periods, dispatch times may vary.

    Delivery charges depend on the items ordered.

    Orders containing Lithium:£6 Courier Shipping
    Orders exceeding £75:£6 Courier Shipping
    Orders exceeding £120:Free Courier Shipping
    Other:£4 Royal Mail First Class

    Please note, that postage costs outside of mainland UK will vary.

    For more information see our Help Centre

    Returns

    Please, contact us to open a return. Please ensure all returns are sent to us with a completed returns form. We aim to resolve all cases within 2 working days. 

    For more information see our Help Centre

  Estimated Delivery: Wed, Sep 09 – Fri, Sep 11  (Excl Sat, Sun)

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Product Description

The 4400mAh 7.4V 2S2P Flat 18650 Li-Ion Battery delivers reliable, long-lasting power for a variety of RC applications, including RC cars, FPV systems, robotics and transmitter packs. Built with 18650 cells, this 2S2P configuration combines two 2200mAh cells in parallel per series group, doubling capacity while maintaining a stable 7.4V output. Its flat design ensures a compact, space-efficient fit, making it an excellent choice for setups requiring high energy density without excessive weight.

With a choice of connectors, including Deans, JR Universal, Mini Tamiya, SM2P, Spektrum and XT60, this battery provides versatile compatibility with various RC models. The JST-XH balance lead ensures that cells remain balanced during charging, enhancing battery performance and extending lifespan. Whether you’re powering an RC vehicle, FPV drone, robotics project or high-demand transmitter system, this battery delivers dependable energy for long runtimes.

Key Features & Benefits

  • 4400mAh capacity & 7.4V output – Delivers extended runtimes for RC vehicles, FPV systems and robotics.
  • Quality & reliability – High-performance 18650 cells ensure stable voltage and long cycle life.
  • 2S2P parallel configuration – Two 2200mAh cells in parallel per series group to double capacity.
  • Flat configuration – Space-efficient design for easy integration into RC setups.
  • Choice of connectors – Available with Deans, JR Universal, Mini Tamiya, SM2P, Spektrum and XT60.
  • JST-XH balance lead – Keeps cells balanced during charging to improve battery lifespan.
  • Ideal for RC applications – Perfect for RC cars, drones, FPV goggles, robotics and transmitters.

Safety Information

Always follow manufacturer guidelines for safe charging, usage and storage of Li-Ion batteries. Use a compatible Li-Ion charger, ensuring correct voltage and current settings. Avoid overcharging, deep discharging and exposure to extreme temperatures. Monitor the battery during use to prevent overheating. Never leave the battery unattended while charging, and store it in a cool, dry place away from flammable materials. Improper handling can cause damage, fire or injury. Dispose of used batteries responsibly according to local regulations.

Specifications

SKU 3262
Barcode 5060470212186
Chemistry Lithium Ion (Li-Ion)
Cell Size 18650
Capacity 4400mAh
Voltage 7.4V
Cell Count 4 cells (2S2P)
Watt Hours 32.6Wh
Connector Options Deans, JR Universal, Mini Tamiya, SM2P, Spektrum and XT60
Balance Connector Type JST-XH
Dimensions 72 x 73 x 21 (mm)
Weight 190 (g)
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