How to Change a Car Battery : How to Test a Car Battery with a Multimeter
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you have an awesome video..thanks for sharing!
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useless, utterly useless video. I think they should be called "village idiot" not "expert village" A battery can have over 12 volts and still need replacement if it drops below 9.4 volts after just one start.
I agree with other comments that testing the terminals and a load test is a much better way to determine if a battery needs to be replaced or not.
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useless, utterly useless video. I think they should be called "village idiot" not "expert village"
8 months ago 2
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According to my book, here's the order of battery tests: 1)Battery Terminal Test 2)Battery Leakage Test 3) State of Charge Test (that's when you use the hydrometer) 4) Open Circuit Voltage Test 5) Capacity Test a.k.a. Load Test (that's when you use the carbon pile load tester) 6) 3-min. Charge Test 7) Conductance Test and, finally, 8) Drain Test
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i have that type of multimeter
and it reads 30DC (36DC when car runs) when in the 50dc scale
how much of my battery is charged??
my car wont crank if its a 25DC
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butter shoes
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@greywolf424 ive got 12.0volt when car off and 14volt when on i know my alt is fine but looks like my battery is a little low
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@greywolf424 my alternator is (my car is) a 1999 lexus es 300 with 150K miles. thanks for the info, i'll perform that check.
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@zillsbury Your alternator could be dying, how old is it? To test your alternator connect your multimeter to the battery it should be around 12.6 to 12.8. Start the engine and the voltage should go up around 13.4. to 13.6 or so.Then have someone turn on the head lights and heater (full).... the voltage should drop for a second or two then return to the 13 range, if it doesn't the alternator is probably worn out.
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Dont use ohms. Perform a voltage drop. There is no need to disconnect the battery. Dont use an analog meter. Test the charging system before automatically replacing the battery. ASE? Yea right...
HondaMasterTech 2 years ago 12
Why is everyone from Expert Village retarded?
deznutz8803 5 months ago 4