Abstract: The battery unit according to the invention for a handheld machine tool comprises a number of battery cells, with at least one of the battery cells being embodied as an isolation battery cell, and showing a fire protection jacket comprising an intumescent material. The fire protection jacket surrounds the isolation battery cell at least partially such that the isolation battery cell is surrounded by the fire protection jacket at a predetermined temperature such that the isolation battery cell is thermally insulated.

Abstract: The battery unit according to the invention for a handheld machine tool comprises a number of battery cells, with at least one of the battery cells being embodied as an isolation battery cell, and showing a fire protection jacket comprising an intumescent material. The fire protection jacket surrounds the isolation battery cell at least partially such that the isolation battery cell is surrounded by the fire protection jacket at a predetermined temperature such that the isolation battery cell is thermally insulated.

Abstract: The hand-held power tool has a tool socket to hold a tool. A motor is coupled to the tool socket in order to drive the tool socket. The motor is arranged in a housing. The housing has a holder that is provided with a mechanical lock for detachably coupling a battery pack, and with a power connection for electrically connecting the battery pack to the motor. A communication interface serves to transmit properties of the battery pack to a motor control unit. The motor control unit includes a soft start that accelerates the speed of the motor from a standstill to a target speed at a given rate, whereby the motor control unit controls the rate as a function of a property of the battery pack transmitted by the battery pack.