Premium 21700 Lithium-Ion Battery – High Capacity & Reliable Power

Engineered with top-tier lithium-ion technology, this 21700 battery delivers exceptional performance with a 5000mAh capacity (40T/50G model) or 4000mAh (50S model). Ideal for high-drain devices like vaping mods, flashlights, power tools, and electric vehicles.

Ultra-safe with stable 3.7V output, built-in protection against overcharge/overheat. Features precision welding and reinforced casing for durability. Bulk pricing available – wholesale discounts for global resellers.

Trusted OEM quality at unbeatable wholesale rates. Stock up for high-demand electronics and DIY projects. Fast shipping worldwide.