UltraFire 18650 4200mAh Li-ion Rechargeable Battery – Premium Power for High-Demand Devices
High-capacity 4200mAh lithium-ion cell delivers extended runtime for power-hungry devices. Built with premium-grade Li-ion chemistry for stable voltage output (3.7V) and enhanced cycle life. Robust steel casing ensures durability and heat resistance, ideal for heavy-duty use. Advanced PCB protection prevents overcharge, over-discharge, and short circuits for ultimate safety. Perfect for LED flashlights, digital cameras, vaping devices, and portable electronics. Backed by strict quality control for reliable performance in extreme conditions. Global wholesale pricing with bulk discounts – power your business with unbeatable value.