How Many Volts Should A Battery Have. Answer 1 of 2. The battery should read at least 126 volts.
126 volts One may also ask how do you check a riding lawn mower battery. When the engine is running this measurement should be 137 to 147 volts. The V is the battery voltage so if R can be determined then the current can be calculated.
This is dependent on the age of the battery.
Different chemistry produces different voltage per cell. Volts on a resting battery means its 19 jun 2017 when the is fully charged. If the battery isnt fully charged it will diminish to 124V at 75 12V when its only operating at 25 and down to 119V when its completely discharged. This tells you how many volts is a car battery while running.
