Extended Runtime With a 6.5Ah capacity, this battery provides longer operation between charges compared to standard 2.0Ah4.0Ah batteries, making it ideal for prolonged use. Wide CompatibilityWorks seamlessly with various 20V tools compatible with LBX4020, LB2X4020, LBXR2020, and similar series batteries. Advanced Safety ProtectionsEquipped with built-in safeguards against overcharging, over-discharging, short circuits, and excessive heat to ensure user safety and battery longevity. Fuel Gauge IndicatorFeatures an easy-to-read charge level indicator so you can always know how much power remains before needing a recharge. Durable ConstructionEngineered with high-quality lithium-ion cells and robust housing for reliable performance in various working conditions.