Today's Battery Gripe

Watson A.Name - "Watt Sun · 2003-09-07T23:38:31+00:00

I asked about finding a AAAA battery holder a few weeks ago, because I couldn't find one on the web. So I made a single AAAA cell holder out of a piece of pc board and some spring clips.I tore apart a couple 9V batteries and found that usually 5 out of the 6 AAAA cells inside were not dead, usually only one cell was bad and caused the battery to fail.I've been putting those halfway good cells in the battery holder and running a V boost circuit to drive a white LED. I put one in the holder and it might have a beginning voltage of 1.35 or so volts, and I let it run until it is well below a volt, usually below .8V. What gets me is the every single cell fails by the same process. The top (negative) contact pops open and the cell leaks some juice, and of course the contact doesn't make contact with the inside of the cell.This means to me that every 9V battery will fail and leak juice inside of the radio, usually corroding the contacts and doing other damage. This is something that I feel shouldn't happen. The cells shouldn't make a mess or do damage.But every single cell has failed in this same way. Doesn't this seem to be a defect that should not happen, or rarely happen? Has anyone else verified this?-- @@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@h@e@r@e@@###Got a Question about ELECTRONICS? Check HERE First:### email address is whitelisted. *All* email sent to it goes directly to the trash unless you add NOSPAM in the Subject: line with other stuff. alondra101 Don't be ripped off by the big book dealers. Go to the URLthat will give you a choice and save you money(up to half). You'll be glad you did!Just when you thought you had all this figured out, the gov'tchanged it:

Sep 07, 2003 22 Replies

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Bushy 22 years ago

I get a good half a dozen cycles out of most of the cheap and nasty batteries and all that extra power costs me is a little time in the mains charger. Certainly runs a few toys for an extra few four year old attention spans!

I know it helps me, Peter

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Ian Stirling 22 years ago

NiMH cells will last longer and last for hundreds rather than 5 cycles.

http://inquisitor.i.am/ | mailto:inquisitor@i.am | Ian Stirling. ---------------------------+-------------------------+-------------------------- "Give a man a fire, and he's warm for a day. Set him on fire, and he's warm for the rest of his life" -- Terry Pratchett-Jingo

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Clifton T. Sharp Jr. 22 years ago

I've noticed over the years that two manufacturers, Black & Decker and Norelco, seem to give me abnormally long life out of NiCD batteries. One day when I get time I plan to investigate. The first B&D drill I checked (lost to a shorted cell after fifteen years) seems never to have fully charged the batteries, just got them close. I'll check a few other gizmos one of these days to see if they do the same trick.

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