The 3.6V 6500mAh 21700 Lithium-Ion Cylindrical Battery Cell is a high-capacity rechargeable battery engineered for demanding applications requiring exceptional performance across extreme temperature environments. With an ultra-wide operating temperature range of -40℃ to 80℃, this advanced lithium-ion cell delivers reliable power output, high energy density, and long service life, making it ideal for outdoor, industrial, specialized field, and energy storage applications.

This battery utilizes high-quality electrode materials and advanced manufacturing technology, maintaining excellent charge and discharge performance under both low and high temperature conditions. Its robust design ensures stable operation in harsh climates where conventional lithium-ion batteries may experience significant performance degradation.

• Ultra-wide operating temperature range from -40℃ to 70℃
• Excellent low-temperature discharge performance
• Stable high-temperature operation and safety
• High energy density
• Reliable performance in extreme environments
• Suitable for high-demand industrial and outdoor applications

• Outdoor monitoring and surveillance systems
• Solar energy storage systems
• Industrial IoT devices
• Defense equipment
• GPS tracking devices
• Electric mobility solutions
• Unmanned aerial vehicles (UAVs)
• Extreme-weather communication devices

• Do not short-circuit, overcharge, crush, puncture, or disassemble the battery cell
• Keep away from fire, high heat sources, and direct sunlight
• Do not immerse the battery in water or expose it to moisture
• Stop using the cell immediately if swelling, leakage, overheating, or odor occurs

• Operate within the specified temperature range for safe performance
• Avoid using cells outside rated discharge current limits
• Extreme temperatures may reduce capacity or performance temporarily
• Ensure proper thermal management in high-load applications

• Always use a suitable Battery Management System (BMS)
• Ensure proper cell balancing in series/parallel configurations
• Do not bypass protection circuits
• Regularly inspect battery pack condition during use

With this high-capacity ultra-wide temperature 21700 lithium-ion battery cell, we provide complete energy solutions tailored to demanding industrial and outdoor applications.