Battery pack

A battery pack, comprising:

• battery cells;
• a circuit unit connected to the battery cells;
• and
• a flexible wiring connecting the battery cells and the circuit unit to each other,
• wherein:
• the flexible wiring includes:
• a first end portion to which a plurality of conductive lines are physically bound;
• and
• a first group of conductive lines and a second group of conductive lines which extend from the first end portion, branch off from each other, and then extend in parallel to each other, and
• the first group of conductive lines includes a folded portion at a branching position at which the first group of conductive lines is separated from the second group of conductive lines,
• wherein:
• the first group of conductive lines includes connection positions that are connected to different battery cells along a first direction at different connection positions,
• at least two conductive lines of the first group of conductive lines are connected together at each of the different connection positions,
• the at least two conductive lines connected together at each of the different connection positions include a first conductive line,
• the first conductive line includes a first cut position at which the first conductive line is cut, and
• the first cut position of the first conductive line is behind one of the different connection positions in the first direction such that the one of the different connection positions is between the first cut position and the first end portion.