This 18V Starter Kit is the ideal solution to reducing downtime and increasing productivity for users tackling the most demanding and brutal applications. It includes two 8 Ah High Power Batteries, which delivers 50% more runtime and over 75% more power than the CORE18V® 4 Ah battery, powering high-demand applications. The GBA18V80 features two layers of enhanced 21700 cells for greater battery efficiency. The battery has Bosch-exclusive CoolPackTM 2.0 technology, which cools the battery faster and helps provide longer lifetime compared to Bosch 18V batteries without CoolPackTM 2.0. Its cutting-edge battery design offers increased efficiency, and it weighs only 2.14 Lbs. This battery is compatible with Bosch 18V tools and optimized to drive Bosch PROFACTORTM tools with BITURBO BrushlessTM Technology. It's compatible with Bosch 18V chargers and the AMPShareTM System. The air-cooled Bosch GAL18V-160C can fully charge a spent CORE18V® 8 Ah Lithium-ion battery in about 51 minutes in standard mode. It features an optional Power BoostTM mode, which boosts electrical current charging to 50% in the shortest time with compatible batteries.