High-Efficiency Battery Pack: Our battery pack provides a robust 20V power output, meeting the diverse needs of VEVOR power tools and ensuring the efficient completion of tasks. Long-lasting Performance: Featuring a high-capacity 4000mAh battery with premium cells, this battery pack ensures exceptional endurance, prolonging work duration and minimizing the need for frequent recharges. Stable Power Delivery: With a maximum output current of 40A, the battery pack maintains stable power supply even under high-load conditions, making it suitable for a range of high-powered electric tools. Safety First: The battery pack incorporates multiple safety mechanisms, including overcharge, over-discharge, and short-circuit protection, ensuring the long-term stable and safe operation of your power tools and battery. Enhanced Compatibility: Designed as an ideal replacement or upgrade for VEVOR 20V cordless power tool batteries, this battery pack enhances the flexibility and versatility of your work.