12 AH HIGH POWER BATTERY PERFORMANCE: Delivers equal power and at least 50% more runtime than the core18v 8 ah battery HIGH-POWER, TURBO CHARGER: Provides fast and faster charging with optional power boost mode BATTERY EFFICIENCY: Features three 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 EFFICIENT OPERATION: Weighs only 3.04 lbs., providing performance comparable to larger and heavier alternatives COMPATIBILITY: Engineered for 18v and compatible with bosch 18v tools and chargers 16-AMP CHARGING CURRENT: Fully charges a spent core18v 12 ah high power battery to 50% in 22 minutes and 80%, in 36 minutes POWER BOOST MODE: Boosts electrical current charging to 50% in the shortest time ACTIVE AIR-COOLING: Uses two fans to cool battery, optimizing charging time while protecting batteries from overheating