How To Bench Test An Alternator At Home. Sometimes your alternator might die at 80000 miles. If you have a garage to build a test bench in- it would be quicker and cheaper to just pull your car in.
If you see higher readings chances are the alternator is good. Testing a car alternator on the bench. We will make a homeade shunt amp clamp.
If the alternator isnt putting out enough current to keep up with the electrical loads that are placed upon it or the charging voltage is low dont automatically assume the starter or alternator is bad and needs to be replaced unless youre bench testing the unit out of.
Then you would also need a spare battery wire terminals a clamp meter a DMM and a load capable of pulling at least as much as your alternator is rated. Every car is different. Bosch auto electric test bench. Or if youre lucky it could last until more like 150000 miles.
