Battery Tender 4A Dual Selectable Power Tender
This clever little device is a four Amp dual-selectable power tender charger by Battery Tender. It’s lightweight, compact, portable, and fully automatic – and offers the ability to select between both 12V and 6V options, depending on the battery you’re charging.
Most importantly, it will keep your battery fully charged so that it’s always ready to go, using an ISM micro-controller which constantly updates the charge sequence for smooth transitions between four unique charging steps.
It’s spark proof, short circuit protected, and there’s a safety timer – plus, it’s suitable for use with AGM, standard, flooded, GEL or lithium batteries.