Sears offers the DieHard Platinum 6-volt / 12-volt Battery Charger and Maintainer for $24.99. Choose in-store pickup to dodge the $6.50 shipping charge. That's $20 off list and the lowest price we could find, although we saw it for $2 less in May. It features a 3-amp charge, scrolling digital messages, float-mode monitoring, auto voltage detection, and reverse hook-up protection.
Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts. Plus, Shop Your Way Max members are eligible for free shipping.