High-Capacity INR21700-50E Lithium-Ion Battery
Premium 3.7V cylindrical cell with 4000mAh/4800mAh/5000mAh options for extended runtime. Features high-energy-density NMC chemistry, precision laser welding, and reinforced steel casing for durability. Ideal for rechargeable devices like power tools, e-bikes, solar storage, and medical equipment.
Ultra-Stable Performance & Safety
Built-in PTC protection and multi-layer separators prevent overheating and short circuits. Superior discharge efficiency (15A continuous) ensures stable output for high-drain applications.
Global Wholesale Advantage
Direct factory pricing with bulk discounts. Strict QC testing (UN38.3 certified) and OEM compatibility. Ships worldwide with guaranteed lowest rates. Stock available for fast delivery.