Optimised lithium technology for high performance and fast charging times. Powerful 18 V / 12.0 Ah High Energy Lithium+ battery for 3 x more runtime and 20% more power than previous lithium technologies. The powerful high-performance cells generate up to 25% less heat in demanding applications. The new design provides more capacity within the battery cell and facilitates the energy flow by up to 20%. IntelliCell - intelligent battery technology monitors each cell individually, maximises the runtime of a battery charge and increases the service life of the battery. Battery charge level indicator.