As one of its daily deals, PricePlunge offers the Franzus Battery Eliminator DC to AC Adapter
, model no. BB333D, for $3.99
for shipping. That's the lowest total price we could find by $4. It replaces the power of AAA, AA, C, D, or 9-volt batteries, enabling 1.5- to 12-volt DC battery-powered devices to run from AC outlets. Deal ends today.
Update: Shipping has increased slightly to $3.49.