Starter set: 1x ProCORE18V 4.0Ah + 1x ProCORE18V 5.5Ah + GAL 1880 CV. The high-performance battery ProCORE18V 5.5Ah delivers power equivalent to a wired 1,800-watt device, while the compact and lightweight ProCORE18V 4.0Ah is included in this starter set. Thanks to the latest cell technology with 21700 cells and Bosch's intelligent battery management, these ProCORE18V batteries provide 87% more power than standard batteries. For longer lifespan and runtime, this battery is equipped with COOLPACK 2.0 technology, which offers excellent heat management. The GAL 1880 CV charger included in the set allows for quick charging times. Charging up to 80% takes only 32 minutes for the ProCORE18V and 35 minutes for the ProCORE18V 8.0Ah with this charger. Since 2008, all our batteries are compatible with Bosch Professional tools of the same voltage class. The ProCORE18V 4.0Ah and 5.5Ah batteries feature a high-resolution charge level indicator with 5 LEDs. Included in the package: 1x ProCORE18V 4.0Ah battery, 1x ProCORE18V 5.5Ah battery, fast charger GAL 1880 CV. Box.