Battery cell dummy for the safe testing of battery systems

The present invention relates to a battery cell dummy, comprising a housing (1), within the housing (1) arranged in electrodes (2, 4) and with the electrodes (2, 4) is electrically conductively connected to terminals (3, 5), wherein the battery cell dummy is formed such that in the housing (1), an electrolyte is receivable, characterized in that the battery cell dummy instead of an electrolyte comprising a filler (9), which contains no effective for the cell type battery electrolyte. Further, the invention relates to a battery, a battery module and a battery system which contains at least such a battery cell dummy relates.