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 volts 
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2CV Fan

Joined: December 27th, 2011, 9:50 pm
Posts: 72
Post volts
Morning all!

Battery is showing healthy readings with and without load with my avo meter but the car's volt meter reads just above the shaded area. Should I believe the car's meter? Is there a way to tweak it to give a more accurate reading?
I do tend to watch a car's dials so it's a little unnerving to see a low charge reading.

Thanks


February 10th, 2020, 11:46 am
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Joined: March 21st, 2013, 12:04 am
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Location: Exeter, Devon
Post Re: volts
I've no experience with the volt gauge, only what I've read.

With a multimeter, what volts are you getting at the battery at about 1500 rpm?

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February 10th, 2020, 2:24 pm
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2CV Fan

Joined: December 27th, 2011, 9:50 pm
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Post Re: volts
Battery voltage is around 13.2v not connected: after starting on fast tickover it reads around 14v (I don't have a rev meter), but as the revs increase the reading is about 14.6v, Headlights on doesn't make a difference, so I don't think there seems to be a problem with the actual charging.
It's just I don't know whether the 2cv gauge is known for being particularly accurate.


February 10th, 2020, 11:25 pm
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Joined: July 10th, 2010, 12:35 pm
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Post Re: volts
The car´s volt meter is not accurate.
My 2CV volt meter shows just above the shaded area .As yours does
I checked the voltage with a multimeter several times and that was fine .
It runs well, no problems starting, having lights on etc., even in frosty winter weather, so I would not be worried about it.

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February 11th, 2020, 9:34 am
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Joined: October 22nd, 2014, 10:59 pm
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Post Re: volts
The 2cv voltmeter is an bimetal that is heated by a resistance cable wound around it so nothing accurate as Geeert says.


February 11th, 2020, 9:44 am
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2CV Fan

Joined: December 27th, 2011, 9:50 pm
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Post Re: volts
I'm reassured : thanks to you all.


February 11th, 2020, 10:35 am
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Joined: March 21st, 2013, 12:04 am
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Post Re: volts
I was trying to say much the same, but my IPaddress was blocked!

Edit

How about that, you leave it over night, and it fixes itself. :lol:

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February 11th, 2020, 11:06 am
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Post Re: volts
Please do not exceed 14,6 vollts


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February 11th, 2020, 1:01 pm
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Post Re: volts
Roger V wrote:
I was trying to say much the same, but my IPaddress was blocked!




Did you write anything nasty on social media ? :?

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February 11th, 2020, 1:17 pm
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Post Re: volts
Not aware of any.

Think it was just a glitch, and an odd error coming up. :)

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February 11th, 2020, 6:09 pm
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