Battery calibration/reset with my Acer Swift 3 (model SF314-41).

I have a problem with my Acer Swift 3 (model SF314-41). For a while, my laptop won´t start unless it´s connected to a charger. The (professional) technician who took a look at it said it all runs fine, but surely it does not. I have tried resetting my battery through the pin on the bottom, but it did not work. I have also tried to calibrate the battery via the Acer Care Center app, but it only shows the battery status and condition. It doesn´t let me calibrate it. I´m considering replacing the whole battery, but I want to hear your guys´ opinion on this.

[Edited the thread to add model number to the title]

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JackE

Go to the elevated command prompt. Enter 'powercfg /batteryreport'. Then return to the desktop. Open file explorer. Then search for' battery-report.html' in the c:\windows\system32\ sub-folder. Double-click to open it in the browser. Compare design full charge capacity with its remaining full charge capacity. Post screenshot of the first part of the report if possible.

Puraw

https://community.acer.com/en/discussion/707126/battery-calibration-reset

Also, disable Acer Care Center 80% battery charge limiting and after disabling check Services what accSVC are still running, stop these and disable the Start type.

jejzi

https://community.acer.com/en/discussion/comment/1280371#Comment_1280371

Hello, here´s the screenshot. I don´t think that this may cause the problem. On top of that, I forgot to mention it earlier, the laptop feels super slow and the loading times are extremely long.

billsey

Your SF314-41 is going on five years old, and batteries typically start going out at closer to seven years. You still have around 75% of the original capacity left, so you should have a while to go before a battery replacement is needed. When you did the reset with the button behind that pinhole, did you do the full procedure? You need to have your charger disconnected, press the button for several seconds (I usually go for 15-30) then wait several minutes to allow all residual charge to bleed off the system components. Next plug only the charger in and wait for the battery indicator to show full charge (it should turn blue). Then, and only then, turn it on. That full process does a reset of the internal battery stats. A Windows calibration is done by running on battery until the system shuts down due to low battery (that can take several hours on newer machines) then plug in and wait for a full charge before turning it back on. Each time you do that Windows gets a little better at estimating time left.

jejzi

https://community.acer.com/en/discussion/comment/1280778#Comment_1280778

Yes, I did the whole procedure, but when I plugged in the charger, the indicator turned blue instantly.

billsey

That would be the normal behavior if the battery were fully charged… Fully charged, however, doesn't mean it has enough power to run. The battery report indicates it should work, but if you can't run on battery, even for a short time, then the battery has likely failed and needs to be replaced.