Bosch 1600Z0002X GBA is a 12 V, lightweight professional lithium Ion (Li-Ion) battery for use with Bosch cordless power tools. The battery fits all tools all tools within the same voltage class but will not fit Bosch DIY green tools. The battery, when attached to a power tool, is so lightweight that you will be comfortable working even if using it in overhead applications. Not only lightweight but hard wearing and robust. In tests the battery is still fully functional after a 3 metre drop onto concrete plus has a 5-times longer life cycle than other brands.