Key Features of Li-ion Rechargeable Battery 18650 3.7V 2200mAh/3500mAh
High-capacity lithium-ion battery with premium-grade cells for stable performance and extended lifespan. Precision-engineered with high-density lithium cobalt oxide (LiCoO2) cathode and graphite anode for optimal energy efficiency. Available in 2200mAh and 3500mAh options—ideal for high-drain devices like flashlights, vapes, power tools, and portable electronics. Built-in PCB protection against overcharging, overheating, and short circuits for enhanced safety. Universal compatibility with most 18650-powered devices—replaceable design ensures easy installation. Ultra-low wholesale pricing for bulk orders—direct factory supply guarantees unbeatable value. High-performance power solution for professionals and DIY enthusiasts—perfect for backup power, emergency kits, and industrial applications.