Got a new battery pack for our stick vacuum because the old one wouldn't charge any more. Tore apart the old one, and trying to decide if I want to mess around to see if any of these individual cells are still good.
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So far one cell seemed to charge up fine on its own, one cell went 'pfffffttt' and released smoke when I popped it's old welds off, and a third is on the charger.
Someone on the #HamWorkbench talked about building a little tester for cells like these - I ought to dig up the show notes from that one if I can find itπ
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@N3VEM Dyson?
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@tebrown yup
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@N3VEM I have to do the same thing with mine :/
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@tebrown luckily the replacement battery packs are reasonably priced, and they're simple to change. If I had a battery welder I would have been inclined to maybe try rebuilding one.
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@N3VEM I'm excited to see how this progresses. I have the same battery pack on my bench awaiting disassembly.
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@aj4om so far 3 of the cells would at least take a charge, and 3 were dead dead. At some point I'll need to actually do a bit of a load test on the 3 that charged.
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text/gemini
