Re: 12 volt power source?

David Nebenzahl wrote:
On 12/23/2007 5:50 PM Charles Davis spake thus:

David Nebenzahl wrote:

On 12/23/2007 4:16 PM Charles Davis spake thus:

12 volt batteries don't get up to 13.8 volts, sorry.


Ah, but they do. My '87 Ford F250, while running down the road, will 'float out' at 14 or 14.5 After siting for a while 10 or 20 minutes, the 'voltmeter' reads close to 14 before the starter kicks in.

Of course that's an OEM automotive dashboard gauge. Which I wouldn't guarantee the accuracy of.


I'd be curious to see what a decent multimeter makes of the actual voltage of that battery. And by "sitting", you mean engine turned off, right?


Yup!!

In the past, when I have been using a 'decent' multimeter on the electrical system, I haven't noticed any great (or even consistent 'minor' differences. Just the difference you would expect comparing readings on a 'multimeter' with a 90deg full range for 15 volts scale, with a dashboard 10 degree for 16 volt scale.)

Chuck D.
.

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