2200mAh 11.1V 3S Flat 18650 Li-Ion Battery

£26.48

  • 2200mAh & 11.1V power delivers reliable energy for RC applications.
  • Long-lasting performance and trusted quality.
  • 18650 cells provide high energy density with stable output.
  • Flat, compact design allows easy installation in various models.
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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: Thu, Oct 15 – Mon, Oct 19  (Excl Sat, Sun)

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Product Description

The 2200mAh 11.1V 3S Flat 18650 Li-Ion Battery delivers reliable, high-voltage power for RC cars, boats, robotics and high-performance transmitters. Built with trusted 18650 cells, this 3S configuration provides a stable 11.1V output, ensuring consistent energy delivery and extended runtimes. Its flat design allows for easy installation, making it a compact and efficient power source for space-limited RC applications.

This battery is available with a choice of Deans or XT60 connectors, offering versatile compatibility with various RC models. The JST-XH balance lead ensures proper cell balancing during charging, enhancing battery performance and lifespan. Whether powering an RC vehicle, robotics system or high-performance transmitter, this battery provides a dependable and efficient energy solution.

Key Features & Benefits

  • 2200mAh capacity & 11.1V output – Provides reliable power for RC cars, boats, robotics and transmitters.
  • Quality & reliability – High-performance 18650 cells ensure stable voltage and long cycle life.
  • 3S flat configuration – Space-efficient design for easy 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 3518
Barcode 5060470215057
Chemistry Lithium Ion (Li-Ion)
Cell Size 18650
Capacity 2200mAh
Voltage 11.1V
Cell Count 3S
Watt Hours 24.42Wh
Connector Options Deans and XT60
Balance Connector Type JST-XH
Dimensions 70 x 59 x 20 (mm)
Weight 149 (g)
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