3S 11.1V 14000mAh 18650 Lithium Battery Rechargeable Battery Pack For Portable Speakers

 Key Features

• Ultra-High Capacity: 14000mAh nominal capacity at 11.1V (12.6V fully charged), significantly extending the runtime of your devices.
• Integrated BMS Protection: Built-in Battery Management System provides full protection against overcharge, over-discharge, overcurrent, short circuits, and overheating for maximum safety.
• Robust PVC Encapsulation: Durable blue PVC heat shrink casing offers excellent insulation, moisture resistance, and impact protection for long-lasting use.
• High Energy Density: Compact cube-shaped design packs more power into a small footprint, making it perfect for space-constrained setups.
• Direct Wire Leads: Tinned red/black wire leads for easy soldering or connection to custom terminals, offering flexible installation options.
• Long Cycle Life: Maintains excellent performance for over 500 charge-discharge cycles with proper care, ensuring long-term reliability.
• No Memory Effect: Can be recharged at any level without reducing overall capacity, maintaining consistent power delivery.

   Specifications

   

  Parameter	Details
  Cell Type	18650 Lithium-Ion
  Configuration	3S Multi-Parallel
  Nominal Voltage	11.1V
  Nominal Capacity	14000mAh
  Rated Energy	155.4Wh
  Full Charge Voltage	12.6V
  Cut-off Voltage	9.0V
  Max Continuous Discharge	10A (customizable)
  Max Charge Current	5A (recommended)
  Connector	Tinned Red/Black Wire Leads
  Protection	Overcharge, Over-discharge, Overcurrent, Short Circuit, Overheat
  Cycle Life	≥ 500 Cycles
  Weight	~550g (approx.)
  Operating Temp (Discharge)	-20℃ ~ 60℃
  Operating Temp (Charge)	0℃ ~ 45℃

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  Common Applications

  Ideal for powering a wide range of 11.1V / 12V devices requiring long runtime:
  • Industrial monitoring and control equipment
  • Portable medical devices and diagnostic tools
  • High-power outdoor LED lighting and solar systems
  • Robotics, automation projects, and RC vehicles
  • Portable speakers, amplifiers, and audio systems
  • Backup power supplies and off-grid DIY projects

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  Safety & Usage Tips

  1. Always use a dedicated 12.6V lithium-ion battery charger with matching polarity to prevent damage.
  2. Do not expose the battery pack to water, high humidity, or extreme temperatures.
  3. Keep the battery pack away from metal objects that could cause a short circuit.
  4. If the pack swells, leaks, or emits an unusual smell, discontinue use immediately.
  5. For long-term storage, keep the pack in a cool, dry place with a 40-60% charge leve