Walmart offers the Stanley FatMax 8-amp Battery Charger bundled with an Extension Cord for $24.98. Opt for in-store pickup to dodge the $5.99 shipping fee. That's $13 under the lowest price we could find for a similar model. It connects with battery clamps, battery ring terminals, or a 12-volt DC plug and features reverse polarity lights that warn against an improper connection.
Dollar stores lure us in with their rock-bottom prices, but not everything is a bargain. We suggest you steer clear of these items.