Recent teardowns I've authored have highlighted the circuitry differences between hardware powered by batteries, therefore containing DC voltage regulation circuitry, and mains-powered equivalents containing more elaborate AC-DC converters. These discussions reminded me of a newly unveiled product, the Batteriser (here's the patent), which was recently shown in AA-sized prototype form to a select set of journalists (yours truly not included, in the interest of full disclosure). The Batteriser is forecast to begin production-shipping in AA, AAA, C, and D cell-compatible form factors in late September, crowdfunded by an Indiegogo campaign.
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