Stop in for a cup of coffee

Mopar Tim said
The amperage that charges the battery sure as heck goes thru the amp meter. Why else have it....

And that is most of the load....

Throw a shitty battery in, boost it to get it running and its just itching to release the magic smoke!!
My 80 power wagon was used pretty hard, massive battery and a snow plow.and winch. Ammeter wasnt cooked but wires were getting crispy.