As one of its daily deals, Nutrend via Newegg offers the Schumacher 6/4/2-amp Charger/Maintainer, model no. SC-600A, for $29.99 with free shipping. That's tied with last week's mention and the lowest total price we could find by $24. It charges 6-volt and 12-volt batteries and features slow, medium, and fast speed settings. Deal ends today.