I installed Linux Mint with KDE Plasma on my roughly 2–3-year-old laptop, and the battery health reading has fallen rapidly—from 60% to 40%, then 30%, and now 20%—over just a couple of days. The battery only charges to about 96%. Yesterday it lasted more than 40 minutes, but today it lasted around 20 minutes under similar conditions. Is this likely a reporting or calibration problem, and could the battery be dangerous or explode?
4 Answers
Linux itself generally cannot make a healthy battery physically degrade that quickly, so the percentage is probably an estimate rather than a real-time measurement of chemical wear. The laptop’s age and previous charge cycles may also mean the battery was already near the end of its useful life. What model is the laptop, and how are you measuring battery health?
It’s a 2–3-year-old laptop running Mint with KDE Plasma. I’m checking the reading with a KDE widget, and the sudden change made it seem like Linux caused the problem.
The battery is unlikely to explode just because the health estimate dropped. Stop using or charging it if it becomes swollen, unusually hot, smells strange, or the case starts separating. Otherwise, check for a battery-health report and consider replacing it if the measured capacity is genuinely around 20%.
A new operating system can expose a calibration or power-management reporting issue, but it normally won’t cause the battery to lose that much actual capacity in two days. Check the battery’s design capacity and current full-charge capacity using a more reliable system tool, and compare the results after a few normal charge cycles. Avoid repeatedly forcing the battery completely empty, since deep discharges can add wear.
Related Questions
Lenovo Thinkpad Stuck In Update Loop Install FilterDriverU2_Reload