Subject:
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Re: Other batteries...
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Thu, 19 Nov 1998 13:51:28 GMT
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Original-From:
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[fthompson9@aol.com]AntiSpam[]
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Viewed:
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1616 times
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Just a quick anecdote about Gel-Cells.
I have a small and useless robot that simply rolls around on the floor
and bumps off things. The motors are powered by a small Gel-Cell. I had run
it that day and run the motor batteries flat, so I rigged a simple charger (a
transformer and bridge rectifier), hooked it up and a couple of hours later
left the house. A few more hours I came home and found a strange smell in the
air. After about 15 minutes investigating, I recognized the smell as sulfer.
I found the battery hot and bubbling. I said to myself that I'm going to have
to get another battery, this one is toast. Well that was four months ago, I
flipped on the robot yesterday and the motors came up to full speed. The
battery has kept its charge for all this time. I do not know what the drain
life of the battery is, but I didn't know what it was before I cooked it
either.
I just wanted to say I'm surprised at how robust these little guys are.
Pherd
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