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

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

Common Applications

• 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.