Patent ID: 8297779

Claim:
A device for power supply of a portable electric lighting lamp by batteries or a storage battery unit, said device being composed: of a front case housing a system of electric contacts connected to a lighting module, of a rear case in the form of a cover, and of a fixing system comprising first articulation means and first clip-fastening means to secure the rear case to the front case, wherein the storage battery unit is housed in an insulating enclosure to constitute a single intercalated part able to be inserted between the front case and the rear case, said enclosure comprising second articulation means and second clip-fastening means designed to operate in conjunction with said first means of the fixing system when the storage battery unit is fitted instead of and in place of the batteries; and wherein said second articulation means of the storage battery unit comprise a transverse spindle formed by a pair of second pins able to be inserted in first holes of the front case, and a pair of second holes for insertion of a transverse spindle formed by a pair of first pins of the rear case.