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MEXICOWANDERER's avatar
MEXICOWANDERER
Explorer
Aug 12, 2017

Make Your Own Alternator Tester Cheap & Simple

http://www.ebay.com/itm/181473581583 Not charging at all, does not require a tester. A simple handheld digital voltmeter can easily spot voltage regulator malfunction. But howabout "Is it good...
DiskDoctr's avatar
DiskDoctr
Explorer
Aug 12, 2017
A Ripple test only requires a DMM to check AC voltage. Over 0.5vac = bad diodes in the alternator.

Aside from the obvious testing of VDC to make sure it is charging, of course.

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