High-Capacity 21700 Lithium-Ion Battery – 5000mAh, 3.7V
Premium 21700 rechargeable lithium-ion battery with ultra-high 5000mAh capacity, ensuring long-lasting power for high-drain devices. Advanced Li-ion technology with stable 3.7V output, precision-engineered for consistent performance and extended cycle life. Ideal for flashlights, vaping devices, power tools, robotics, and portable electronics—perfect for professionals and enthusiasts. Robust construction with built-in protection against overcharging, overheating, and short circuits for enhanced safety. Globally compliant with strict quality standards, backed by bulk pricing for wholesale buyers—lowest rates guaranteed.