TECHNICAL DATA: Battery voltage: 18 V Battery capacity: 2 Ah Energy: 36 Wh Weight: 430 g LI-POWER BATTERY 18V - 2.0 AH Intelligent battery management ensures long battery life with a 3-year warranty Patented "AIR COOLED" charging technology Continuous electronic cell monitoring during charging (ESCP) ensures very long battery life. Processor-controlled management of charge and discharge cycles Battery capacity indicator for constant charge status monitoring Long storage life with minimal self-discharge **