This set includes both an 8.0Ah Procore Battery and GAL18V40 Charger Bosch ProCORE GBA 18v 8.0Ah Lithium Ion Battery The Bosch ProCORE 18V 8.0Ah Battery, for when you need to get every ounce of power out of your tools to complete extreme applications. 100% compatible with all Bosch 18V Professional Power Tools. Thanks to the triple-layered cell structure of the ProCORE 18V 8.0Ah, you can work with maximum power for an exceptionally long time. For performance as powerful as that of corded tools. Features Part of the ”Flexible Power System“ 18 volt range from Bosch. Use it immediately without having to worry about whether it is compatible The ”Flexible Power System“ guarantees compatibility with all new and existing professional power tools and chargers within the same voltage class High-performance: +87% more power Significantly smaller size and better weight Airtight cells Improved copper cell connection Optimised performance and long battery life thanks to CoolPack 2.0 technology