How To Measure Current Of A Battery. To determine the AH of a 12-volt battery use a multi-meter. Engineers typically prefer to use amp-hours to measure the discharge rate using time t in hours and current I in amps.
How to measure current with a digital multimeter. In practice it is much easier to use voltmeter and to convert the current into voltage. If this average current flow continues for an hour the discharge rate is 095 A-h.
Place Battery in the Holder.
The charge is the product of current and time. The positive V and B are directly connected fused only. Connect the test probes to your cell with the black wire meeting the negative. The voltage that can be measured is at the battery terminals on top of the battery casing and is marked as B and B-.
