Starter Set 2 x GBA 12V 6.0Ah + GAL 12V-40. 2 x 12-volt batteries with a capacity of 6.0 Ah and a fast charger. GBA 12V 6.0Ah: Extremely high battery capacity for up to 300% more runtime than the 12V 2.0 Ah Professional model. GAL 12V-40: High charging speed for all 12-volt batteries. Charges 12V/6.0Ah batteries from 0% to 80% in just 72 minutes. Compatible since 2005: All our batteries fit within their respective voltage class into both new and existing Bosch Professional tools. Box includes: 2 x GBA 12V 6.0Ah battery; GAL 12V-40 Professional fast charger.