A battery pack, comprising:
- a plurality of battery cells;
- and
- at least three pack power contacts,
- wherein a first pack pair of the pack power contacts is designed for making contact with device power contacts of a first electrically driven work device and/or a first charging device, wherein the battery pack is designed for supplying, due to contact being made, the first work device with electrical drive power with a first electrical voltage from at least a portion of the plurality of battery cells and/or supplying, due to contact being made, at least a same portion of the plurality of battery cells with electrical charging power with the first voltage from the first charging device by way of the first pack pair, and
- wherein a second pack pair of the pack power contacts, which second pack pair is different from the first pack pair at least in portions, is designed for making contact with device power contacts of a second electrically driven work device and/or a second charging device, wherein the battery pack is designed for supplying, due to contact being made, the second work device with electrical drive power with a second electrical voltage, which is higher than the first voltage, from at least a same portion of the plurality of battery cells and/or supplying, due to contact being made, at least a same portion of the plurality of battery cells with electrical charging power with the second voltage from the second charging device by way of the second pack pair,
- a power transmission device,
- wherein the plurality of battery cells has a first number of battery cells and a second number of battery cells,
- wherein the power transmission device is designed for transmitting electrical charging and/or drive power from the first pack pair and/or the first number of battery cells to the second number of battery cells and/or from the second number of battery cells to the first pack pair and/or the first number of battery cells for adjusting a first state of charge of the first number of battery cells and a second state of charge of the second number of battery cells,
- wherein the power transmission device has at least three inputs and/or outputs, wherein a first transmission pair of the inputs and/or outputs and the first number of battery cells and the first pack pair are permanently interconnected electrically in parallel and not the second number of battery cells,
- wherein a second transmission pair of the inputs and/or outputs, which second transmission pair is different from the first transmission pair at least in portions, and the second number of battery cells are permanently interconnected electrically in parallel and not the first number of battery cells, and
- wherein a third transmission pair of the inputs and/or outputs, which third transmission pair is different from the first transmission pair and the second transmission pair at least in portions, and the first number of battery cells and the second number of battery cells permanently interconnected electrically in series and the second pack pair are permanently interconnected electrically in parallel,
- wherein the battery pack is designed for supplying the first voltage defined by a first total voltage only of the first number of battery cells,
- wherein the battery pack is designed for supplying the second voltage defined by a second total voltage of the first number of battery cells and the second number of battery cells permanently interconnected electrically in series,
- wherein at least one pack power contact of the first pack pair is configured to not make contact with the device power contacts of the second work device and/or the second charging device,
- wherein the battery pack is designed for supplying only the first voltage by way of the first pack pair, and
- wherein the battery pack is designed for supplying only the second voltage by way of only the second pack pair.