OptiMate 7 12-24V : GOLD series 12V 10A / 24V 5A lead-acid battery saver, charger, tester & maintainer

Safe choice for 12V or 24V battery - charging will not occur if the selected voltage does not match the battery voltage! Automatically charge, test and maintain 12V or 24V AGM, GEL, EFB or STD lead-acid starter or deep cycle batteries of any size at any temperature - voltage is set higher in cold and lower in heat! The Ampmatic charging controller adjusts the power to the battery size - a small battery receives less, a large battery more! ! Rescues deeply discharged batteries with the ''electronic-safe'' rescue mode - The user can override the voltage protection for deeply discharged 24V batteries. Intelligent interactive maintenance of the OptiMate 24-7 prevents discharge from connected loads and guarantees more battery power and longer life!