The Battery Tender (a registered trademark) and its little brother, Junior, are both good units, but the Schumacher unit that koolaid_kid and I linked to do exactly the same thing for considerably less money.![]()
If you absolutely insist on spending more money, though, you can go to Sears and get that same Schumacher unit, but it will now have a "DieHard" label on it and it will cost about $10 more. :-\\\
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If you wait for them to go sale ..then apply ones employee discount... and buy them on a Friends & Family day (10%off) ...They are really affordable and the Craftsman label is no big deal...(I have 3 of them and a Battery Tender Jr and a Schumacher Battery Maintainer - 3 motorcycles, lawn tractor)