High-Capacity INR21700 Rechargeable Battery – 4000mAh 3.7V/3.6V
Premium INR21700 lithium-ion cells deliver reliable 4000mAh capacity with stable 3.7V/3.6V output, ideal for high-drain devices. Advanced nickel-rich cathode and graphite anode ensure enhanced energy density, cycle life (500+ charges), and thermal stability. Precision laser-welded terminals and multi-layer safety vents prevent overcharge, short-circuit, and overheating risks. Perfect for power tools, electric vehicles, LED flashlights, portable medical devices, and high-performance vaping mods. Bulk pricing available – wholesale discounts for large orders, sourced directly from OEM manufacturers for guaranteed authenticity. Global shipping, factory-direct pricing – no middlemen, no markup. Stock up on durable, high-efficiency power solutions today.