Features-With-this-automatic-charger-you-can-charge-6-&-12-volt-batteries-Suitable-for-charging-keeping-the-conventional-standard-lead-&-acid-batteries-as-well-as-all-maintenance-free-or-gel-batteries-As-soon-as-the-charging-voltage-of-the-battery-is-reached-the-electronic-control-automatically-reduces-the-charging-current-which-protects-the-battery-against-damage-A-charge-control-&-a-polarity-indication-informs-about-the-correct-operating-state