PERFORMANCE: Delivers 50% more runtime and over 75% more power than core18v 4 ah battery, powering high-demand applications ENGINEERED FOR CHARGING SPEED: Delivers at least 40% faster charging than bosch standard 18v chargers with core18v 6 ah battery BATTERY EFFICIENCY: Features two layers of enhanced 21700 cells for greater battery efficiency BOSCH-EXCLUSIVE COOLPACK 2.0 TECHNOLOGY: Cools the battery and helps provide longer battery lifetime compared to non-coolpack bosch 18v batteries CUTTING-EDGE BATTERY DESIGN: Includes copper end plates, power rails and a flexible circuit board, offering reduced resistance and increased efficiency COMPACT OPERATION: Battery weighs only 2.14 lbs., for the ideal balance of size, weight and power CHARGE-STATUS INDICATOR: Features high resolution for clear visibility COMPATIBILITY: Engineered for 18v and compatible with bosch 18v tools and chargers 8-AMP CHARGING CURRENT: Delivers 4x the charging current compared to the gal18v-20 standard charger FAST CHARGER DESIGN - GETS USERS POWER READY FASTER WITH DUAL-MODE CHARGING