What's your volt meter reading when cruising around town? Options

[raynekat]

Just curious what the typical volt meter reading is:

1) when you're sitting at the stoplight

2) cruising down the boulevard at 3-4000 rpm

Trying to see if I'm seeing typical or low readings
Thanks

I just recently noted a low charging issue that I believe came down to an alternator/voltage regulator mismatch.
I was using a Bosch VR with my Motorola alternator.
Now I've switched to a Marchal VR and the charging voltages look better.
About 13.75 volts while cruising.

[raynekat]

My 13.75 volts is coming from a voltmeter across the battery terminals.

With the Bosch VR's, I was only getting about 13.2 volts at 3000 rpm.
Driving at night with the lights on and wipers going, you could see the lights visibly dimming at a stoplight as the revs came down.

I also tried a modern Motorola VR that doesn't plug into the socket (had to do some creative wiring to get it to work) and it showed the same as the Bosch VR's.

Still looking around for a "vintage" Motorola VR to try, but perhaps the Marchal is doing a good enough job?
I'll get the car out at night again and check it out.

I've got one of those volt meters/USB things that plug into your cigarette lighter socket for reading voltage while I'm driving.
I'm assuming they are fairly accurate.
Anyone else tried one of those?