Load testing help

[20046.0]

Hey guys I have a battery(s) or alternator that has failed. I boosted truck because it did not start this morning. Tried starting it right after I shut it off and it was dead.

Can I use a multimeter do to the tests.

[Turbostang500]

Multimeters generally don't do load tests.

You can watch the voltage while someone tries cranking and if it is low (under 11v) i would say go to a parts store and have them load tested. They need to be load tested individually though so disconnect one and test. Then reconnect that one and disconnect the other and test it. Its the only way to actually tell if they are good.