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High Capacity 7.4V 8000mAh 21700 Battery Pack BMS Protected For Outdoor String Lights
High Capacity 7.4V 8000mAh 21700 Battery Pack BMS Protected For Outdoor String Lights
High Capacity 7.4V 8000mAh 21700 Battery Pack BMS Protected For Outdoor String Lights
High Capacity 7.4V 8000mAh 21700 Battery Pack BMS Protected For Outdoor String Lights
High Capacity 7.4V 8000mAh 21700 Battery Pack BMS Protected For Outdoor String Lights
High Capacity 7.4V 8000mAh 21700 Battery Pack BMS Protected For Outdoor String Lights
Specifications
Certification :
UN38.3 MSDS IEC62133 CE ROHS
Model Number :
21700-8000-7.4V
Brand Name :
MEISAEN
Payment Terms :
T/T
Supply Ability :
100000PCS
MOQ :
1000PCS
Place of Origin :
Shenzhen, China
Description
Power your portable devices with this high-performance 7.4V 8000mAh 21700 lithium-ion battery pack. Built with premium 21700 cells in a 2S2P configuration, this pack delivers stable 7.4V power with a massive 8000mAh capacity, ideal for power-hungry electronics requiring long runtime.

Key Features

  • High-Capacity Performance: 8000mAh nominal capacity at 7.4V (8.4V fully charged), providing extended runtime for your devices.
  • Premium 21700 Cells: Utilizes high-quality 21700 lithium-ion cells for high energy density and reliable performance.
  • Integrated Safety Protection: Built-in BMS safeguards against overcharge, over-discharge, overcurrent, and short circuits for worry-free use.
  • Compact Form Factor: Dimensions of 42 × 42 × 70.5mm make it easy to integrate into various projects and devices.
  • Plug-and-Play Connector: Pre-fitted with a standard 2-pin red connector for easy installation (custom connectors available on request).
  • Durable PVC Encapsulation: Blue PVC heat shrink casing offers excellent insulation, moisture resistance, and impact protection.
  • No Memory Effect: Recharge at any level without reducing overall capacity, ensuring consistent power delivery over time.

Specifications

Parameter Details
Cell Type 21700 Lithium-Ion
Configuration 2S2P (2 Series, 2 Parallel)
Nominal Voltage 7.4V
Nominal Capacity 8000mAh
Rated Energy 59.2Wh
Full Charge Voltage 8.4V
Cut-off Voltage 6.0V (typical)
Connector 2-Pin Red Connector
Dimensions 42 × 42 × 70.5 mm
Protection Overcharge, Over-discharge, Overcurrent, Short Circuit
Operating Temp (Discharge) -20℃ ~ 60℃
Operating Temp (Charge) 0℃ ~ 45℃

Common Applications

Perfect for powering a wide range of 7.4V / 8.4V devices:
  • Portable speakers and audio equipment
  • LED lighting systems and outdoor string lights
  • Robotics, automation projects, and RC vehicles
  • Small power tools and DIY projects
  • Medical devices and monitoring tools
  • Backup power supplies and portable electronics

Safety & Usage Tips

  1. Use only a dedicated 8.4V lithium-ion battery charger with matching polarity to avoid damage.
  2. Do not expose the battery pack to water, high humidity, or extreme temperatures outside the specified ranges.
  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 with a 40-60% charge level for long-term storage.High Capacity 7.4V 8000mAh 21700 Battery Pack BMS Protected For Outdoor String Lights

    High Capacity 7.4V 8000mAh 21700 Battery Pack BMS Protected For Outdoor String Lights

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High Capacity 7.4V 8000mAh 21700 Battery Pack BMS Protected For Outdoor String Lights

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Product Detail
Certification :
UN38.3 MSDS IEC62133 CE ROHS
Model Number :
21700-8000-7.4V
Brand Name :
MEISAEN
Payment Terms :
T/T
Supply Ability :
100000PCS
MOQ :
1000PCS
Contact Supplier
High Capacity 7.4V 8000mAh 21700 Battery Pack BMS Protected For Outdoor String Lights
High Capacity 7.4V 8000mAh 21700 Battery Pack BMS Protected For Outdoor String Lights
High Capacity 7.4V 8000mAh 21700 Battery Pack BMS Protected For Outdoor String Lights

Shenzhen Meisha New Energy Technology Co., LTD

Verified Supplier
1 Years
shenzhen
Since 2016
Business Type :
Manufacturer, Exporter
Main Products :
New Energy Battery, Polymer Lithium Ion Battery, 18650 Lithium Battery
Total Annual :
2000USD-3000
Employee Number :
100~150
Certification Level :
Verified Supplier
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