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Fleabit peanut monkey
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Key Fob Battery - When is it dead V wise?
Key fob has a 2032 disc battery. 3V. Puts out 2.92V with VM.
Is she dead wrt the fob functioning?
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1981 911SC Targa |
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09-10-2014, 01:58 PM
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Information Junky
Join Date: Mar 2001
Location: an island, upper left coast, USA
Posts: 73,189
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I can tell you that with my Cayenne keyfob, that the battery has to have higher than normal voltage when the contact has green corrosion. :-/
I've been meaning to write this up for the Cayenne forum, but in short, the contact that grabs the side of the battery is not soldered to the board. (it's a spring contact) This (with a little moisture) allows the contact pad, on the PCB (printed circuit board) to corrode, and add resistance to the path. Then batteries seem to toast quickly. But really, it's this bad contact that is casing problems.
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Everyone you meet knows something you don't. - - - and a whole bunch of crap that is wrong. Disclaimer: the above was 2¢ worth. More information is available as my professional opinion, which is provided for an exorbitant fee. 
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09-10-2014, 02:57 PM
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Fleabit peanut monkey
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Quote:
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1981 911SC Targa |
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09-10-2014, 03:33 PM
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Fleabit peanut monkey
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Quote:
Thanks for your time island911.
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1981 911SC Targa |
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09-10-2014, 03:59 PM
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You do not have permissi
Join Date: Aug 2001
Location: midwest
Posts: 39,832
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A swipe with WD40 on a rag probably wouldn't hurt.
It helps with sticky outlets as well. |
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09-10-2014, 08:06 PM
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Registered
Join Date: Sep 2009
Location: North of You
Posts: 9,160
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Batteries typically need a load to be tested. Open circuit voltage is not a good indicator.
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"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands." |
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09-11-2014, 11:09 AM
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Registered
Join Date: May 2002
Location: St Louis
Posts: 4,211
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The total capacity is measured until the battery is at 2 Volts.
http://data.energizer.com/PDFs/cr2032.pdf
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Rick 88 Cab |
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09-11-2014, 07:22 PM
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Information Junky
Join Date: Mar 2001
Location: an island, upper left coast, USA
Posts: 73,189
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Quote:
Key remotes, they may be expensive, but at least they are fragile. :-/
__________________
Everyone you meet knows something you don't. - - - and a whole bunch of crap that is wrong. Disclaimer: the above was 2¢ worth. More information is available as my professional opinion, which is provided for an exorbitant fee.
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09-17-2014, 02:33 PM
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1981 Porsche 911 SC Targa
