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A comment on CT scans of 1k lithium-ion batteries show quality risks in inexpensive cells. Parent comment

Re:CT scans of 1k lithium-ion batteries show quality risks i... by stavros on Saturday September 27, 2025 @06:42AM (#45394657)
I'm in the process of replacing the battery in my old robot vacuum right now, and for the amount of time spent doing that, I could buy a whole new vacuum. It's a pity, because the battery itself can be replaced just by plugging it in, but all the batteries I could find were AliExpress fakes, so my two options are either "more e-waste" or "spend $500 in time doing it myself".
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Re:CT scans of 1k lithium-ion batteries show quality risks i... by avar on Saturday September 27, 2025 @10:43AM (#45396133)
Some of us enjoy fixing things like these over and above the hypothetically fungible billable hour, and whether you can substitute some time in an evening with a billable hour or three is highly dependent on your employment situation.

But in this case the relevant cost under discussion isn't that of a replacement vacuum cleaner, but what value you assign to your house not burning down due to a crappy 18650 cell, or the anxiety of worrying that that'll happen.

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Re:CT scans of 1k lithium-ion batteries show quality risks i... by stavros on Saturday September 27, 2025 @10:58AM (#45396261)
Well, I don't enjoy making the hundredth battery pack, so I'm counting it against the hypothetically fungible billable hour.

The cost should be the cost of a good-quality battery pack from the factory, which I can only get right now as part of the vacuum, unfortunately.

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