1996 jeep
racingf33
11-16-2009, 07:50 PM
my generator light stays on and the gauge doesnt read 14 volts but the battery dosent go dead
brainyass
12-03-2009, 10:07 AM
Use this simple test to determine if you fault lies in your battery or alternator. Always test the battery directly using a volt meter.
Battery test: with engine off battery should be no less than 12 VDC
Alternator Test: with engine running battery voltage should be above the reading you had with the engine off or around 13VDC
If battery test fails and alternator test passes= bad battery ( take battery to autozone for a load test)
If battery test passes and alternator test fails= bad alternator ( take alternator to autozone for a load test)
If both fail= take battery and alternator to autozone for load test
Battery test: with engine off battery should be no less than 12 VDC
Alternator Test: with engine running battery voltage should be above the reading you had with the engine off or around 13VDC
If battery test fails and alternator test passes= bad battery ( take battery to autozone for a load test)
If battery test passes and alternator test fails= bad alternator ( take alternator to autozone for a load test)
If both fail= take battery and alternator to autozone for load test
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