Bosch ProCORE GBA 18v 4.0Ah Lithium Ion Battery The Bosch GBA 18v 4.0Ah ProCORE Battery 1600A016GB has even more power in a compact size, and has a constant power output even under full load. 100% compatible with all new and existing Bosch Professional 18v power tools and chargers. This battery has 87% more power thanks to the latest cell technology and intelligent battery management, and 135% longer life with the COOLPACK 2.0 technology that prevents the battery from overheating. 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