Posts Tagged: Reserve Capacity Rating

Reserve Capacity Rating

Reserve Capacity Rating A battery’s reserve capacity rating is the time in minutes that a new, fully charged battery will deliver 25 amperes at (80°F) while still maintaining a terminal voltage equal to, or higher than, 1.75 volts per cell. In other words, the reserve capacity rating represents the time the battery will continue to operate essential accessories if the alternator or generator of a vehicle fails. How much reserve capacity do you need? Here are some typical current (amp) draw for vehicle accessories when run without the engine or … Read More