Equipped with lithium-ion cells, the battery consistently delivers the same performance. The self-discharge of the battery and capacity loss due to frequent partial discharge (memory effect) are now a thing of the past. The innovative Real Time Technology with an integrated LCD display provides a quick overview of remaining runtime, charge status, and battery capacity – always depending on the device being used. Comfortable soft-touch housing elements ensure a non-slip stand on smooth and inclined surfaces. With the included fast charger, the 18 V / 2.5 Ah Battery Power interchangeable battery can be charged to 80% in just 44 minutes, while the 18 V / 5.0 Ah Battery Power interchangeable battery takes 94 minutes. The fast charger can be easily mounted on the wall thanks to the integrated wall bracket.