The Bosch Professional battery platforms were created to make work easier for the professional user. Forget all those loose batteries for every single drill or sander; the battery platforms allow you to use one battery on all kinds of different tools. The Bosch Professional battery platforms are divided into 2 lines, for the 12V and 18V machines. The battery for your 12-volt Bosch Blue electric screwdrivers also works on your 12-volt Bosch Blue multi-tool. The same goes for your 18-volt Bosch Blue tool. This saves a lot of space in the workshop or in the van as well as costs.