Battery pack GBA 18V 5.0Ah. The GBA 18V 5.0Ah Professional battery from Bosch's 18-volt class is designed for longer runtime. Its higher capacity allows for a 25% longer runtime compared to the 18V 4.0Ah Professional. Additionally, this model features COOLPACK 1.0 technology for better heat dissipation from the battery's interior to the exterior. Since heat can damage the cells, the COOLPACK technology ensures a longer battery lifespan and enables extended operating times. The GBA 18V 5.0Ah Professional is a lithium-ion battery with a battery charge status indicator. Box; 1 x GBA 18V 5.0Ah battery.