Because it is a safety issue and the battery isn’t designed for that anyway. A UPS is designed to stay charged for a long period of time and laptop is not.
Comment on Ideas for how to repurpose a half broken laptop
poVoq@slrpnk.net 8 months agoWhy remove the battery when it is a perfectly working built in UPS?
possiblylinux127@lemmy.zip 8 months ago
huginn@feddit.it 8 months ago
Because over time the battery degrades, swells, and becomes a fire risk.
Keeping it only 80% charged can help mitigate it but not fully.
poVoq@slrpnk.net 8 months ago
That is largely a myth and in my experience never happens with higher quality laptop batteries. But yes limiting charge doesn’t hurt if it is only used as a UPS anyways.
huginn@feddit.it 8 months ago
What part is the myth?
Which batteries are “high quality”?
Cause it happens… Pretty regularly if you’re not limiting charging. The older the battery the more likely.
Railcar8095@lemm.ee 8 months ago
Not a myth. Better batteries might have better safety measures, but none is inmune. It might not have happened to you but I’ve seen it happen in several high end/expensive brands already.
possiblylinux127@lemmy.zip 8 months ago
It will be a really bad UPS at best