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Wireless doorbell

My doorbell stopped so I checked the 3 batteries in the ringer unit with a flash light. Sure enough, one was dead as only 2 would light the light and the one would not with either of the other. Decided to put3 new batteries in the unit. Later went down to the bench and for some reason check the batteries on the meter. One was 1.5 volts, the second was 1.5 and the third was NEGATIVE 1.5 volts! Not dead. I have never seen a D size dry cell reverse polarity. This unit did work when it was installed 3 years ago. How is it possible for the D cell to reverse polarity. The ringer unit is strictly batteries, no AC plug.

PS:any way to get rid of all the shit messages in this group?

Reply to
Van Chocstraw
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Some well tuned message filters in Seamonkey do a pretty good job for me.

Cheers

Phil Hobbs

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ElectroOptical Innovations
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hobbs at electrooptical dot net
http://electrooptical.net
Reply to
Phil Hobbs

I've never heard of a non-rechargable battery reversing its voltage - this suggests a read error...

John :-#)#

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Reply to
John Robertson

Had somebody else written this I would have said the same thing. I checked it several times since I couldn't believe it. Thought maybe the meter was kibosh. Check the other batteries, check ok, that one...reversed, negative on top, positive on bottom. Freak battery.

Reply to
Van Chocstraw

I'd guess the reversed battery gave up before the other two, which continued to discharge through the dead one. The dead one shows a "reverse charge" now, but I suspect it hasn't much current capacity. Most of its contents are just flat, but some small part of it took a charge. Disposable batteries don't recharge well, but sometimes you'll see things like that. Is it an Alkaline D cell, or an old-style "Heavy Duty"? I haven't seen it happen with an Alkaline cell.

Reply to
Mark Allread

The one with the reverse polarity was semi-dead when installed. When it hit zero, the other good batteries continued to "charge" this battery, but backwards. It's a common problem when mixing cells in a series connected battery pack. As the pack discharges, the weakest cells will tend to be reverse polarized.

More:

Sure. Hire a professional hit man and have him start at the top of this spammer list:

After a few of the top spammers are eliminated, the rest should get the clue and find something else to do.

Otherwise, look into Usenet filters such as Newsproxy/Nfilter

or whatever is built into your news reader. I'm using Forte Agent

5.0, which works fairly well. 
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Jeff Liebermann     jeffl@cruzio.com
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Reply to
Jeff Liebermann

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