Battery-operated handheld power tool, battery unit for a handheld power tool, system with the handheld power tool and a battery unit, charging device for a battery unit and system with a battery unit and a charging device

17:

• The battery-operated handheld power tool as recited in claim 15 wherein the switch is operatable manually by a user of the handheld power tool.

18:

• The battery-operated handheld power tool as recited in claim 15 wherein the switch includes a semiconductor component changeable to an open switching state or a closed switching state by a specific control signal.

19:

• The battery-operated handheld power tool as recited in claim 18 further comprising a controller configured to output the control signal on the basis of actuation of a main switch of the handheld power tool.

20:

• The battery-operated handheld power tool as recited in claim 18 wherein the semiconductor component includes two MOSFETs connected in series with opposite polarity.

21:

• The battery-operated handheld power tool as recited in claim 18 wherein the semiconductor component includes four MOSFETs arranged in two pairs connected in parallel with one another, wherein the two MOSFETs of each pair are connected in series with opposite polarity.

22:

• A battery unit for a handheld power tool comprising:
• a plurality of cell arrangements and a plurality of contacts guided to the outside in pairs, wherein a respective pair of the plurality of contacts are connected to the poles of an associated cell arrangement of the plurality of cell arrangements.

23:

• The battery unit as recited in claim 22 wherein each cell arrangement has a maximum output voltage of less than 60 V.

24:

• The battery unit as recited in claim 22 wherein each cell arrangement includes a plurality of lithium-ion cells.

25:

• The battery unit as recited in claim 24 wherein the plurality of lithium-ion cells numbers a maximum of 14 lithium-ion cells connected in series.

26:

• The battery unit as recited in claim 22 wherein the plurality of cell arrangements numbers exactly two and the plurality of contacts has exactly four contacts guided to the outside.

27:

• The battery unit as recited in claim 22 wherein the plurality of cell arrangements numbers exactly three cell and the plurality of cell contacts has exactly six contacts guided to the outside.

28:

• A system with a battery-operated handheld power tool as recited in claim 16 and a battery unit including the first and second cell arrangements and a plurality of contacts guided to the outside in pairs, wherein a respective pair of the plurality of contacts are connected to the poles of an associated one of the first and second cell arrangements.

29:

• A charging device for charging the battery unit as recited in claim 22, the charging device configured to charge each cell arrangement of the battery unit separately.

30:

• A system comprising the battery unit as recited in claim 22 and a charging device for charging the battery unit and configured to charge each cell arrangement of the battery unit separately.