One of indicators that reflects the battery capacity, it refers to the discharge time according to the current. When the batteries with same voltage, the larger of the ampere-hour, the larger of the capacity; When the batteries with same ampere-hour, the higher of the voltage, the larger of the capacity; we usually use the voltage and ampere-hour to indicate the battery capacity, such as 12V/7AH, 12V24AH, 12V/65AH, 12V/100AH.