| The Battery Tender is much more than a trickle charger. It has a brain. It's lightweight, compact, and fully automatic; very easy to use, especially in small spaces. It will keep your battery fully charged so that it is ready to go when you are! • 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.
• Reverse polarity protected.
• 12' output cord.
• 5 year warranty for Junior, 10 year warranty for Plus | 
