metabo Metabo 625453000 1.5Ah Li Power Extreme Battery Pack, 36 V, Green

"AIR COOLED" technology Permanent electronic monitoring individual cells (electronic single cell protection) loading, for extra long lifeCapacity indicator for the permanent checking of the filling stateUp to 40% more power with up to 40% less weightNo memory effectLong shelf life at virtually no self-dischargeGood environmental characteristicsUniversal sliding seat system for harder mechanical stressTemperature-monitoring system constantly monitors the battery temperature (shutdown at critical temperature ~ 80°C)3 years battery pack