The Bosch ProCORE18V 5.5 Ah Professional battery delivers high performance for all Bosch 18V Li-Ion tools. Thanks to advanced heat management technology and compact dimensions, this battery offers long-lasting power and a long service life. Special featuresHigh power: +67% more power, equivalent to a 1600 W corded machine COOLPACK 2.0 technology prevents overheating and extends service life by up to +135% Compact and lightweight: 28% more compact than comparable 18V XL batteries 100% compatible with all Bosch Professional 18V machines and chargers 5 LED indicator for battery status HDPE cooling element around each cell, copper cell connections and air cooling for optimal heat dissipation Technical dataBattery voltage: 18 V Battery capacity: 5.5 Ah Supplied as standard1x Bosch ProCORE18V 5.5 Ah battery