High-Capacity 21700 Lithium-Ion Battery with Type-C USB-C Port
Premium 21700 lithium-ion cell delivers stable 5.5V output and 4700mAh capacity for extended runtime. Built-in Type-C USB-C charging port ensures universal compatibility and fast recharge. Robust industrial-grade casing with shock-resistant design, ideal for high-drain devices like flashlights, vaping mods, and portable electronics. Precision-engineered circuitry prevents overcharge/overheat. Direct factory pricing with bulk discounts—global wholesale supplier trusted for quality and unbeatable value. Stock up for resale or high-demand projects.