Battery voltage increases when voltmeter connected

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When I connect a AA rechargeable battery directly to a voltmeter, voltage increases slowly, regardless of the way I connect it. I can't figure out why.
 

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  • #2
berkeman
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When I connect a AA rechargeable battery directly to a voltmeter, voltage increases slowly, regardless of the way I connect it. I can't figure out why.
Increases from what to what? And what do you mean by "regardless of the way I connect it"? There aren't that many ways to connect a DVM to a battery... :smile:
 
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  • #3
OmCheeto
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When I connect a AA rechargeable battery directly to a voltmeter, voltage increases slowly, regardless of the way I connect it. I can't figure out why.
This happened to me last year when I was measuring the voltage on a car battery.
It turned out the battery in my voltmeter was going dead.
Replacing the battery in the voltmeter made the problem go away.
 
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  • #4
CWatters
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Sometimes the heat from your hand is enough to boost the chemical reaction in the battery increasing the voltage.
 
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  • #5
Averagesupernova
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Increases from what to what? And what do you mean by "regardless of the way I connect it"? There aren't that many ways to connect a DVM to a battery... :smile:
Correctly anyway. I wondered the same thing.
 
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