1905 9 Sept. 806/2 ‘Wireless’ electric battery... There is no wire, yet the case itself serves the purpose of a wire... It is made by the Wireless Battery Company.
1933 14 Apr. 83 (advt.) Ever Ready wireless batteries.
2006 (Nexis) 6 Apr. The people of her generation..took shoes to the cobblers, and got their wet-cell wireless batteries recharged every other week.