This week's tool, a desulfator battery charger and maintainer, can revive weak batteries ... He uses a four-amp Viking model from Harbor Freight and reports fantastic results.

A battery charger is used to charge a battery fully from a depleted state. A battery maintainer, on the other hand, is designed to maintain a battery's charge over time by supplying a small ...

Not all cars are meant to be driven every day. If you own a special vehicle, such as a classic or sports car, you probably keep it tucked away somewhere until you're in the mood to take it for a spin.

You might like VIKING's Fully Automatic Microprocessor-Controlled Battery Charger and Maintainer. This compact power brick delivers a healthy 4 amp charge to any kind of 12V car battery ...

Having your bike start when you want it to isn’t the only benefit of a battery maintainer, or a smart charger, which are now more commonly used. Letting a motorcycle battery die damages it and ...

A car battery charger and maintainer is a smart investment that can save you hassle, time, and money in the long run. Not all battery chargers and maintainers are created equal. Before you decide ...