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A reading of 12.10 volts means that it is halfway.But when it reads 12.4 volts, the battery has attained a 75% charge level, and it could still be charged further, there would be no danger.
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If it reads 12.6 volts, the battery is just attaining a fully charged state.When the multimeter reads 12.8 volts, then your battery should not be charged any further, because it is fully charged.Then place the multimeter leads on the battery terminals in the order of positive to positive and negative to negative.Īfter you have done these, you won’t still know if your battery state if you don’t understand the outcome of the test, so The next thing to do is to adjust the multimeter to a direct current of 20 volts. For accuracy, there should be at least an hour interval between the last time your battery has been charged and the time you are conducting this test. This test will help you decide if a little boost is all you need to get your batteries to full function.īefore this test is carried out, you should ensure that the battery has not been charged recently. The first test we would talk about is the static battery voltage test you should do this to know the state of charge of your battery.
Cen tech 7 function digital multimeter check a wire how to#
How to Carry out the Static Battery Voltage Test We have three types of tests you can carry out on your batteries and the processes involved, to assure you that your batteries and the charging systems are in good order or not. Knowing that you can use the multimeter to check your 12-volt battery is useful knowledge, but the key question is “how do you check your 12-volt battery with the multimeter?” You already know a bit about the multimeter, you might have even gotten one for yourself, but you would need to perform the test on your batteries to see if you can still make use of it, or you need a replacement. You jump into your car, and you try to ignite it, but then the engine won’t start, even the headlights won’t turn on, now you realize you are having battery issues.