Products/Tools Share Email Article Share on LinkedIn Share on X Share on Facebook The Rise of Cordless Power June 24, 2014 First it was Metabo, then Bosch. Now it’s DeWalt. Cordless power is getting stronger as toolmakers introduce 18-volt battery packs rated 5.0 Ah or higher. The increase from 4.0 or 3.0 amp-hours means more power and longer runtimes.