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The Battery Tender® Junior offers much more than a trickle charger could offer. It has a brain. All Battery Tender® battery chargers automatically switch from a full charge to a float charge. The Battery Tender® Junior will fully charge your power sport or vintage vehicle. It's lightweight, compact, and fully automatic; very easy to use, especially in small spaces. Battery maintenance has never been easier with smart charger technology. Perfect for all lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell).Complete 4-step charging program (Initialization, Bulk Charge, Absorption Mode, Float Mode).Automatically switches to float / maintenance voltage after fully charging the battery.If the battery voltage drops too far under load, full charger output power resumes.Solid state two color LED indicates stage of charger.Spark proof.Plugs directly in to the wallSafety timer: 80 Hrs.Reverse polarity protected.12' output cord.