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any auto parts store
cant test both of those for free
You can also test them yourself if you have a digital multi-meter. The battery will read 12.6 volts when fully charged. 12.4 at 75% charge, 12.2 at 50% charge, and 12.0 at 25% charge. With the engine at idle you should read from 13.5 to 15.5 volts at the battery if the alternator is good.
What else can I help you with?
How do you tell if your alternator is bad in your 1996 dodge neon?
you could pull off your positive battery cable if it stalls out then you alternator is the problem
Why isn't your Mazda truck alternator not charging your battery?
bad alternator, bad voltage regulator, bad battery, bad connections.
How can you tell if your alternator is bad on a Subaru Outback?
The quick easy method for determining a bad alternator or at least to find out if it is charging, while the car IS running remove the negative battery cable from the battery, if the car stalls then you need to have the alternator service inspected.
How do you wire alternator to a battery to test alternator?
run it and then disconnect the negative wire from the battery if alternator dies its bad.
Why does the battery light stay on after replacing the alternator 2009 Chevy Malibu?
You might have a bad battery, a poor connection between the battery and alternator, or a bad ground from the battery.
Battery KEEPS draining?
Need more info... How old is it? Do you drive short distances? Does it sit around not driven a lot? Check for a short, bad alternator, or fried battery. If you take the car to an alternator shop, they can usually tell you for free if it's the battery or the alternator.
MY car battery light is still on after the alternator and the battery has been changed. The battery cables are clean and well attached. Now what?
Battery light usually means alternator not charging. Most common solutions would be be a bad alternator, bad connection, or loose alternator belt. A replacement alternator can be bad. If it is ok than most likely a poor connection to the alternator.
What can make a car battery die when running?
It sounds like the alternator is bad. If the alternator is bad the battery will not hold charge when running
How do you tell if Alternator is bad?
Get engine running. While the engine is running disconect the POSITIVE termninal from the battery. If the engine dies, the Alterntor is bad.
How can you tell if your alternator is bad on a 1995 Ford Bronco?
Start the car, unplug the battery the alternater should power the car. If it dies the alternator is bad. You can also get it checked at any parts store.
Will a bad alternator keep a 1999 S10 pickup truck from starting?
The answer is no . The battery starts you vehicle , the alternator charges the battery so if your alternator is bad your battery is not receiving a charge which will cause a "no start" condition.
How can tell if the battery is bad or the alternator?
Take the battery to a parts store so they can test it.... Actually you need to test both the battery and the alternator because if your alternator is not functioning correctly it can drain the battery of power... so just testing the battery may only tell you that you have a drained battery and not reveal the cause... This testing can be done using an Auto meter which tests the battery and also does an alternator load test...If you do not have a tester you can rent one from an auto parts store,or you can remove the alternator and take it to the auto parts store and have it bench tested along with the battery...usually for free...
