another not charging thread

Here's a way to narrow down points of resistance using voltage drops.

Turn the key to accessory, turn on the heater fan.
Measure if that causes voltage drop the battery positve and the main splice.
Even without the ammeter, we know the fan pulls a fair amount of current, especially in high.


Or you can do the same test with the key off. Turn on the parking lights, and then the headlights.