The Deltran 12 Volt battery tender gives your battery a full charge and then switches to “float mode to keep the battery at full charge. The Deltran is practically ‘fool proof’; just hook it up and forget about it until you’re ready to ride again. Periodical maintenance is recommended, but the battery tender can monitor a battery for years without fear of boiling or destroying the battery. This charger moves swiftly, so don’t worry about a trickle charge; and it easily plugs into the wall for easy and quick access. It is covered by a 10 year manufacturer warranty from Deltran. Check out the 12 Volt-Battery Tenders-Plus Charger, Deltran battery products , and other motorcycle battery options on our website: CompetitionAccessories.com!