Percolation? Heat soak? Don't drive during summer??

Mattax said
In common lingo, people often say that 'alternator charging' when they mean alternator is supply power.
That's NOT what you are seeing on the "alternator" gage here.
View attachment 1715599725
This is showing the alternator supplying power to the battery.
D = Battery Discharging
C = Battery Charging.

Notice where the ammeter is in the circuit?
View attachment 1715599739
Its between the battery and the main splice.
Current flows through the ammeter only when the battery is discharging or charging.
With a fully recharged battery and a working alternator, no current flows through the ammeter.

More charging with rpm means one of two things.
1. Battery is extremely low on charge or is damaged.
2. Voltage isn't properly regulated so its going up with rpm.
Fix this because it will cause all sorts of problems, some of them potentially disasterous.

Thanks for this! I'll see if I can figure some of this electrical out... electrical and me are not friends...

dartfreak75 said
If your getting shocked by the coil without touching it you got something not grounded or insulted.

Ok ill check it out.

Phreakish said
It can also mean there's something spliced into the battery side of the connection, and the 'charge' indication is current flowing to whatever that is.

In any event, @Mattax is right - it's a situation which can result in a fire. It would be wise to figure out the cause, correct it, and then do an ammeter bypass and/or a 'wire around' with a heavy gauge wire from the alternator to the main battery splice.

Make a trip to Vegas and fix my wiring for me??? I got beer and will smoke some brisket for you...