This unit it very simple to use. When plugged into a 110V AC outlet and connected to a 12V DC battery, an indicator light will come on to let you know whether or not your battery is charging. When the battery is charged and then full, it shuts off so it does not overcharge it for extended periods of time like non-maintainers. Automatically then, it will begin to charging and maintaining at full capacity when voltage dips. This cycle repeats as long as it is plugged in and connected to keep the battery at 100% capacity.
Battery Charger Maintainer – Gas Trailer (#ACHG0058)
This automatic battery tender and maintainer will conveniently charge your batteries and maintain them at full capacity.