The pack has battery cells e.g. lithium ion cells, arranged in a housing. An electronic circuit is provided to monitor operating parameters of the cells. The circuit is mounted on a circuit board (22) and arranged in the housing. A housing cover (3) includes an inner side (12) facing the cells. The inner side includes a receiving shell, which is delimited by an outer shell rim. The board is accommodated in the shell and lies at a distance to a base (25) of the shell. A filling space is formed between the board, the base and the rim, where the space is filled out with cured sealing compound.
