Subject:
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Re: Repairing small 9v battery box
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Newsgroups:
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lugnet.robotics
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Date:
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Sun, 4 Jul 2004 14:55:24 GMT
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Viewed:
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958 times
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In lugnet.robotics, Brian Davis wrote:
> I've got one recently off od Bricklink, and it seems not to be working. Yes,
> new battery, yes, battery works in other small 9v boxes, yes, I made sure it was
> cool (thermal protection). Any ideas? Any suggestions how to troubleshoot or fix
> it, *without* destroying it? Is there a non-destructive disassembly method?
> While we're at it, what's the max currrent (sustained) these can take before
> the thermal protection cuts in? Brief tests show it's less than 5 amps...
I had a large battery box that was did not work reliably (sometimes yes,
sometimes no). The problem was burning at a battery contact. The current does
not need to be very high to do that if the contact area is very small. The
discolored spots were 'open circuit'.
Jerry
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Message is in Reply To:
 | | Repairing small 9v battery box
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| I've got one recently off od Bricklink, and it seems not to be working. Yes, new battery, yes, battery works in other small 9v boxes, yes, I made sure it was cool (thermal protection). Any ideas? Any suggestions how to troubleshoot or fix it, (...) (20 years ago, 4-Jul-04, to lugnet.robotics)
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