BATTERY WIRING MODULE

A battery wiring module 20 configured to be attached to a single cell group 10, which is a plurality of single cells 11 in which positive and negative electrode terminals 12 are lined up, includes: a connecting member 21 that connects adjacent ones of the electrode terminals 12; and a resin protector 30 that holds the connecting member 21. The resin protector 30 is provided with a first wire holding part 40 and a second wire holding part 44 that are respectively capable of holding two types of electric wire groups W1 and W2. The second wire holding part 44 is arrangeable to cover the first wire holding part 40.