Black & Decker BM3B 1.5A 6/12V Battery Maintainer, $13.99 w/free SSS @ Amazon
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Reg $17.99. Perfect for winter storage of lawn tractors, motorcycles, cars, etc.
At this price, cheaper than most no-name Chinese units. What I like about the B&D maintainers is that they include cigarette lighter plugs, so you don’t have to pop the hood.
https://www.amazon.com/BLACK-DECKER-BM3B-Automatic-Maintainer/dp/B0051D3MP6?tag=phtwllt-20
