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

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

Brand: Overlander

Part No: OL-3638

$67.46 RRP $71.01

Shadow Stock: Usually ships within 4-5 days

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The Overlander 6400mAh 14.8V 4S2P 18650 Li-Ion Battery – Deans (OL-3638) delivers high-capacity, long-lasting power in a compact square pack. Built from trusted 18650 cells, its 4S2P layout pairs two 3200mAh cells in parallel per series group to double capacity while maintaining a stable 14.8V output. The configuration 25 square design helps maximise space efficiency in installations where room is limited.

This OL-3638 variant is supplied with a Deans main connector and a JST-XH balance lead for accurate cell balancing during charging. Also available in the range with XT60. With 94.7Wh of energy, dimensions of 72 x 74 x 38 mm and a weight of 396 g, it provides an efficient power solution for demanding RC and electronics projects.

Key Features & Benefits

  • 6400mAh capacity and 14.8V nominal voltage for extended runtime.
  • High-quality 18650 Li-Ion cells for stable voltage, efficiency and long cycle life.
  • 4S2P configuration: two 3200mAh cells in parallel per series group to double capacity.
  • Square pack design (configuration 25) for compact, space-efficient installs.
  • Deans main connector on this OL-3638 variant; also offered with XT60 within the range.
  • JST-XH balance lead to maintain cell balance and support battery longevity.
  • Suggested compatibility: RC cars, boats, robotics and high-performance transmitters.

Specifications

  • Chemistry: Lithium Ion (Li-Ion)
  • Cell Size: 18650
  • Capacity: 6400mAh
  • Voltage: 14.8V
  • Cell Count: 8 cells (4S2P)
  • Watt Hours: 94.7Wh
  • Main Connector: Deans
  • Balance Connector: JST-XH
  • Dimensions: 72 x 74 x 38 mm
  • Weight: 396 g
  • Brand: Overlander
  • Part Number: OL-3638
  • SKU: 3638
  • Barcode: 5060470215026

Safety Information

Always follow the manufacturer’s guidelines for charging, use and storage. Use a compatible Li-Ion charger with correct voltage and current settings, balance-charge via the JST-XH lead, and monitor the pack during use and charging. Avoid overcharging, deep discharging and extreme temperatures. Never leave the battery unattended while charging, and store in a cool, dry place away from flammable materials. Dispose of used batteries responsibly according to local regulations.

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)


Key Info:
  • Brand: Overlander
  • Part No: OL-3638
Standard Shipping

£3.95 to most of the UK

Express Shipping

£6.95 to most of the UK

Worldwide Shipping

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