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Set the multimeter to DC voltage in the 20 volt range. You will read 12.7 volts on a fully charged battery. 12.4 at 75% charge, 12.2 at 50%, 12.0 at 25%, and 11.9 or less on a discharged battery. You will read between 13.5 and 16 volts on the battery posts with the engine running if the alternator is good.
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What can you use to check the voltage of a battery?
Voltmeter or multimeter.
What are the symptoms that your car might need a new alternator?
Battery not being kept charged. Drive the car to most Auto Parts stores. They will check the alternator for free. Or, if you have a multimeter, check the voltage at the battery terminals with the engine running. Should be from 13.5-15 volts.
How can you test a battery?
You can test a battery by using multimeter. Set the multimeter to the DC voltmeter setting and then place the leads of the multimeter across the leads of the battery. the multimeter will have a readout of the voltage.
When your alternator goes bad will that cause your engine light to come on?
It can but the Battery light should be on. Check with a digital multimeter what the voltage is at the battery, If its 13-14 volts with the car running the alternator is probably o/k
What tool do you use to check voltage in a battery?
A battery tester is basically a voltmeter used while a resistor is draining the battery - For a car battery try an auto store for household batteries try Radio-Shack or make your own.
My '91Mazda 323 dies while driving It starts fine with a boost but dies soon after Help?
Probably need an alternator. Check your battery voltage with a multimeter, without the car running it should be around 12.5 volts with engine off. Start the car & check the battery voltage and if the alternator is charging properly it should be 13.5 or better at the battery. If not check the power terminal at the alternator itself and if only battery voltage (12 or so volts, same as battery) is there then the alternator is not charging.
Why would a car with a new battery not start and once you give the battery a jump it starts it's a 1999 Mercedes c230?
probably has a bad alternator. With the car running use a digital multimeter an you should have 13 + volts (as high as 14.5+) at the battery terminals if the alternator is working. If only 12 volts or so then check the alternator.
How can you check Integrated Circuits with a multimeter?
To check the IC by the multimeter, you have to make sure that the pointer points at the current. You can then connect the multimeter across the check the IC.
Replaced battery and the battery warning stays on?
check the alternator. Use a digital multimeter and with engine running you should have 13-14 volts at the battery. If less than 12.5 Alternator is not charging Also check the amperage the alternator is putting out.
How many volts takes multimeter?
In Digital multimeter we use 9V Dc battery.
How does one know when a creative mp3 player's battery is dead?
well most obviously, charge the battery and turn on the mp3 player, if it doesn't turn on it's most liky dead, housever you should use a multimeter to check the actual battery. well most obviously, charge the battery and turn on the mp3 player, if it doesn't turn on it's most liky dead, housever you should use a multimeter to check the actual battery.
What are the symptoms of a bad battery or cables?
The symptom of a bad battery or cable is the starter is unable to get the power to start the engine. You can use a digital multimeter to check to see if it is the cables or test the battery for the definite cause.
