A typical sealed lead-acid (SLA) car battery, often called a “12V battery,” is designed to produce at least 12 volts when fully charged. However, as the cells inside a battery age and undergo repeated ...

safe and precise charge 【3 Charging Modes and Repair Modes】This boat battery charger has 3 charging modes: 12V SLA/AGM, 12V LITHIUM, 12V CALCIUM battery charging mode, and 1 automatic repair mode.