6400mAh 14.8V 4S2P Config 25 18650 Li-Ion Battery

£52.99

  • 6400mAh & 14.8V power delivers extended runtime for RC applications.
  • 18650 cells ensure high energy density with stable voltage output.
  • 4S2P parallel pack doubles capacity while maintaining efficiency.
  • Square, compact design offers a space-saving and lightweight solution.
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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 6400mAh 14.8V 4S2P 18650 Li-Ion Battery delivers high-capacity, long-lasting power for RC cars, boats, robotics and high-performance transmitters. Built with trusted 18650 cells, this 4S2P configuration pairs two 3200mAh cells in parallel per series group, doubling capacity while maintaining a stable 14.8V output. Its square pack design (configuration 25) provides a compact and efficient layout, making it ideal for space-limited RC applications requiring high energy density.

This battery comes with a choice of Deans or XT60 connectors, ensuring broad compatibility with various RC models. The JST-XH balance lead keeps cells balanced during charging, enhancing performance and extending battery lifespan. Whether powering an RC vehicle, robotics system or high-performance transmitter, this battery provides a reliable and efficient energy solution.

Key Features & Benefits

  • 6400mAh capacity & 14.8V output – Provides extended runtime for RC cars, boats, robotics and transmitters.
  • High-quality 18650 cells – Ensures stable voltage, efficiency and long cycle life.
  • 4S2P parallel configuration – Two 3200mAh cells in parallel per series group to double capacity.
  • Square pack design – Compact and space-efficient for seamless integration into RC setups.
  • Choice of connectors – Available with Deans or XT60 for broad compatibility.
  • JST-XH balance lead – Maintains cell balance during charging, extending battery lifespan.
  • Ideal for RC applications – Perfect for RC cars, boats, robotics and high-performance 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 3638
Barcode 5060470215026
Chemistry Lithium Ion (Li-Ion)
Cell Size 18650
Capacity 6400mAh
Voltage 14.8V
Cell Count 8 cells (4S2P)
Watt Hours 94.7Wh
Connector Options Deans and XT60
Balance Connector Type JST-XH
Brand Overlander
Dimensions 72 x 74 x 38 (mm)
Weight 396 (g)
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