Battery accuracy in Ubuntu refers to how precisely the system tracks and reports battery levels.
Battery accuracy in Ubuntu refers to how precisely the system tracks and reports battery levels.
You can check the battery status using command line tools. Run `sudo systemctl status battery` to see its current health and capacity. For more detailed info, consider using `batteryinfo` or `powerstat`. These will give you accurate data about the battery's condition and performance.
It seems around 1.6A draw based on the 4044mAh capacity. If it ran about 45-60 minutes before shutting off, the draw might have been closer to 5.3-4A. I'm not very experienced with this stuff, so you might be mistaken. Regarding battery training, it usually involves connecting the device to power and running a charge/discharge cycle to adjust the battery's estimation.
This indicates a possible faulty battery. The battery's BMS reports the level, but turning off at a high percentage often means a cell is dead. The undervoltage protection trips, and the BMS doesn't recognize this as part of the level calculation.
That is a really good point, I didn't think about the possibility of bad cell. I had the laptop just sit and discharge again to see if that would help the estimations maybe self adjust(which I know isn't the greatest idea), but looking at the report graphs again I could see that something might be up with the battery. Now the debate of pulling apart the battery to check the cells or to get another battery. considering my level of expertise it would probably be better just to get a new battery -__- but the frugal (cheep?) side of me wants to have the laptop consider where it keeps powering off as the charge floor (~0%). I'm guessing there might be a way to manually adjust it or just accept that if I see i am approaching 50% I should plug in. although roughly an hour of activity is fine for me in most cases considering this laptop is plugged in most of the time, enough time for an average meeting else where before returning to my desk. I could also do some more tweaking any how to make it not go through as much battery as well.
Despite the chance of a bad battery cell, I often faced inaccurate battery readings—like the system showing 1% left when there was actually 100%. This usually occurred after the laptop woke up from sleep. The most effective fix was creating a script to refresh the battery status more frequently, around every 2 seconds, which resolved the issue in about 99.8% of cases. https://askubuntu.com/a/1189185. Please try the script and monitor the changes over the next week. If the problem continues, consider checking for battery swelling or overall capacity.