SAM Original INR21700 40T 3.6V High Capacity Rechargeable Li-ion Battery
High-energy 4000mAh capacity for extended runtime in demanding applications. Built with premium SDI 40T lithium-ion cells for stable discharge and long cycle life. Ideal for high-drain devices like power tools, vaping mods, and portable electronics. Robust construction with advanced thermal stability and overcharge protection. Precision-engineered 21700 size ensures compatibility with modern battery compartments. Perfect for professional and DIY enthusiasts seeking reliable, high-performance power. Global wholesale pricing available for bulk orders. Stock up on industry-grade batteries at unbeatable rates. Upgrade your gear with SAM Original’s trusted lithium-ion technology.