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Electrol Manfacturing was a Providence battery company started in 1918 by Edward Hacking from Central Falls. We have seen Edward Hacking before. He and his brother Edwin also started the Sahara Battery company in Providence. In 1918, Edward invented a new battery electrolyte used in batteries called Electrol. This substance was poured into the battery as a liquid and then sets to various degrees of hardness.

Providence Journal
July 28, 1918

Edward also started Hacking Manufacturing Company and advertised Electrol.

Providence Journal
July 7, 1918

Providence Journal
July 14, 1918

Then in 1922 we start to see the Electrol Manufacturing Company, of course advertising Electrol, this time for use in Radio.

Providence Journal
July 2, 1922

Providence Journal
July 9, 1922

Providence Journal
July 23, 1922

Providence Journal
September 10, 1922

Providence Journal
September 17, 1922

US1362294 ELECTRIC STORAGE BATTERY	US1362295 ELECTROLYTE FOR ELECTRIC STORAGE BATTERY
US1416195 ELECTRIC STORAGE BATTERY	US1421217 ELECTRIC STORAGE BATTERY