Check the listing for details. VEVOR 20V 4.0Ah Lithium-Ion Battery - High-Capacity Replacement Battery Pack for. Condition: New. Listed at 69.93 USD. ??VEVOR 20V 4.0Ah Lithium-Ion Battery - High-Capacity Replacement Battery Pack for Power Tools Batteries,Compatible w/20V Cordless Power ToolsLong-lasting EnduranceEfficient OutputMultiple Safety ProtectionsQuick ChargingWide CompatibilityHigh QualityBattery Capacity: 4000mAH,Number of Batteries: 5 in Series,1 in Parallel,Output Current: 40A max,Item Model Number: VV-EX2040,Product Dimensions: 5.7"x 3.0"x 2.2"/ 144.4 x 76.0 x 54.8 mm,Net Weight: 1.1 lbs /500 g,Rated Voltage: 20V Extensive Compatibility: As the ideal replacement or upgrade for VEVOR 20V cordless power tool batteries, this battery pack significantly enhances the flexibility and versatility of your work. Comprehensive Safety Features: The battery pack incorporates multiple safety mechanisms.