Rated best battery charger ever, charges at a slightly slower rate than Plus version, can be connected to battery all the time. Charger will sense when battery is getting weak and turns On in charge mode, then shuts off automatically when battery is fully charged.

Rated #1 Motorcycle Battery Charger by Motorcycle Consumer News Magazine. Battery Tender PLUS is a 1.25 amp battery charger designed to fully charge a battery & maintain it at proper storage voltage without the damaging effects caused by trickle chargers.