Subject:
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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 12:32:56 GMT
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Viewed:
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945 times
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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, *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...
--
Brian Davis
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Message has 2 Replies:
 | | Re: Repairing small 9v battery box
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| (...) 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 (...) (20 years ago, 4-Jul-04, to lugnet.robotics)
| | | Re: Repairing small 9v battery box
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| (...) Hmmm, difficult. After a quick inspection, I'd say no. (...) What batteries are you using? I doubt there's many 9V batteries that can take sustained 5A for very long. ROSCO (20 years ago, 4-Jul-04, to lugnet.robotics)
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