Eneroid’s horribly named, horribly video’d, horribly photographed battery charger is magic in practice, like a Mr. Bucket but for batteries.
Drop your rechargeable batteries in the top of the unit (up to 20 at a time), press a button, and walk away. Come back to find them charged in a little drawer. For AAAs, both versions of the Eneroid include 4 AAA spacers- slightly more work, but it’s not like AAAs weren’t annoying to begin with.
The Deluxe model adds a digital display and (slow) USB ports on the back, which you probably don’t need, so stick with the Basic and save a few bucks.