I just got a pretty good deal on an old ThinkPad (think 10 years old now) to use as a beater for screwing with ArchLinux and hopefully to find a real use for. It’s in great shape like it was never really used, but big shock, the battery is at 50% effective capacity and what’s there disappears in less than an hour.
Would you bother buying a battery replacement for it? On one hand I want it to actually be usable on the go because that was sort of the point. On the other, while replacement batteries exist, I’m worried that they’re already very old themselves and already “expired”. Would you take the chance? I don’t want to let this thing go to waste when it’s still perfectly usable, in fact it’s pretty fast.
What does that have to do with anything? You gave dangerous advice to someone with unknown skill levels for handling batteries.
But yes, I do, and if you don’t know what you’re doing and puncture a cell trying to take the wrap off, you’ll have a bad time. Li-Ion fires are terrifying, and it makes no sense to replace a few cells when you can just get the whole damn battery for a few dollars more and mitigate the risk of burning down your house.