How To Test A 9 Volt Battery With A Multimeter. Thus it can either be measured in terms of amp-hours Ah or milliamp-hours mAh. AA batteries which fall in the list of small batteries are normally measured in mAh while high-end.
Any reading under 12 VDC indicates the battery is dead. Any reading of voltage below 95 volts or if the battery holds a good record for a while and steadily drops or even when it falls instantly to 0 volts then it means there is a problem and the battery. Which unit would best suit to test the car battery with a multimeter depends on the size of battery.
Red is bad and green is good.
Set voltage selector to battery size. Set the voltage selector to the 15V setting 15 volts and touch the red probe to the end with the nub and the black probe to the - end of 15-volt batteries. Touch the red probe to the positive terminal and the black probe to the negative terminal. In this article youd be learning how to use a Cen-Tech digital multimeter to check Voltage.
