Re: 12V to 5V



Those results are puzzling. Connected in parallel, the two 6-volt
batteries
should give 6 volts (or slightly more, up to about 7, if they are fully
charged). Why you are getting 11, I don't know. Connected in series
they
should (and do) give 12 volts or a little more (up to 14, wich is what
you
observe).

He has the batteries in series for both measurements. He is referring
to the METER'S + and - terminals connecting the two batteries' + and -.
The readings should have the same absolute value, just differing by a
+/- sign.

AH!! Sorry.

Then it's a digital multimeter whose DC offset is WAY out of adjustment. A
correctly adjusted multimeter should read the same voltage if you swap +
and -, except that you get a - in front of the number.


.



Relevant Pages

  • Re: 12V to 5V
    ... should give 6 volts (or slightly more, up to about 7, if they are fully ... He has the batteries in series for both measurements. ... correctly adjusted multimeter should read the same voltage if you swap + ... The readings on a perfectly good ...
    (sci.electronics.design)
  • Re: Leaving 7355 on battery (was Leaving fridge running when stored)
    ... The actual pamphlet that comes with the 7300 series says its charging rate ... actually 13.7ish volts but it "tapers off to a few hundred ... the normal charge, the converter drops to 13.5 volts which is "designed to ... In real life, with a pair of golf cart batteries, I have found it works ok ...
    (rec.outdoors.rv-travel)
  • Re: Amps and EMG Pick Ups
    ... Many have said that EMG pick ups are "harsh", but OK with modellers and efx units. ... If you've got room for multiple batteries in your guitar, you can use two batteries wired in series to power your onboard circuitry at 18 volts. ...
    (alt.guitar.amps)
  • Re: Newbie - Voltage - shock of 9v battery vs. 12v car battery
    ... >> and not 9v toy batteries. ... I admit that I have not bridged 12 volts with my tongue. ... > about being shocked through dry skin? ... > The shock sensation goes up dramatically with voltage, ...
    (sci.electronics.basics)
  • Re: Battery Source
    ... Yeah, it's maybe okay in small doses, flashlight ... batteries come to mind as being pretty safe if not swallowed. ... 12 volts DC is right at the maximum sane voltage. ...
    (rec.aviation.soaring)