Power up your portable devices with our high-performance 11.1V 10400mAh 18650 lithium-ion battery pack. Built with premium 18650 cells (3S4P configuration) and equipped with a built-in protection circuit, this pack delivers reliable, long-lasting power for a wide range of electronics, from LED lights to robotics.

• High Capacity & Voltage: 10400mAh nominal capacity at 11.1V (12.6V fully charged) for extended runtime.
• Built-in Safety Protection: Integrated PCB safeguards against overcharge, over-discharge, overcurrent, and short circuits, extending battery life and ensuring safe operation.
• High Energy Density: Lightweight yet powerful, offering more energy per unit weight than traditional lead-acid batteries.
• No Memory Effect: Recharge at any time without reducing capacity, maintaining consistent performance over hundreds of cycles.
• DC Connector Ready: Pre-fitted with a standard DC plug for easy plug-and-play installation (custom connectors available upon request).
• Long Cycle Life: Rated for over 500 charge-discharge cycles with proper care, making it a cost-effective power solution.

  Parameter	Details
  Cell Type	18650 Lithium-Ion
  Configuration	3S4P (3 Series, 4 Parallel)
  Nominal Voltage	11.1V
  Nominal Capacity	10400mAh
  Rated Energy	115.44Wh
  Full Charge Voltage	12.6V
  Cut-off Voltage	9.0V
  Max Continuous Discharge	15A
  Max Charge Current	5.5A
  Connector	Standard DC Male Plug (5.5x2.1mm)
  Protection	Overcharge, Over-discharge, Overcurrent, Short Circuit
  Cycle Life	≥ 500 Cycles
  Weight	~250g (approx.)
  Operating Temp (Discharge)	-20℃ ~ 60℃
  Operating Temp (Charge)	0℃ ~ 45℃

  Common Applications

  Perfect for powering a wide range of 11.1V / 12V portable devices, including:
  • LED strip lights and outdoor lighting systems
  • RC toys, drones, and robotics projects
  • Portable speakers and audio equipment
  • Medical devices and monitoring tools
  • Small fans, pumps, and power tools
  • DIY projects and backup power supplies

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  Safety & Usage Tips

  1. Use only a dedicated 12.6V lithium-ion battery charger with matching polarity to avoid damage.
  2. Do not expose the battery pack to extreme temperatures, water, or direct sunlight for prolonged periods.
  3. Keep away from metal objects that could short-circuit the terminals.
  4. If the pack swells, leaks, or emits an unusual smell, discontinue use immediately.
  5. Store in a cool, dry place when not in use, with a 40-60% charge level for long-term storage.