SAMSUNG INR21700 40T High-Performance Lithium-Ion Battery
Premium 4000mAh capacity delivers long-lasting power for high-drain devices, ensuring reliable performance in demanding applications. Advanced INR chemistry with stable 3.7V output, optimized for professional vape mods, power tools, and high-performance flashlights. Precision-engineered with ultra-low internal resistance, maximizing efficiency and minimizing heat buildup during continuous use. Robust 21700 form factor (21mm x 70mm) combines compact design with superior energy density, ideal for space-sensitive setups. Strict Samsung quality control guarantees consistent discharge rates and cycle life, backed by industry-leading lithium-ion technology. Perfect for DIY power banks, electric vehicles, and industrial equipment requiring dependable, high-capacity rechargeable cells. Bulk pricing available for resellers and manufacturers—global wholesale leader with guaranteed lowest prices on volume orders. *Note: Includes basic plastic battery case; charger sold separately.*