Surface Pro 8 Battery Limit setting question

Question

Question about the Battery Limit setting....

I know this is designed to help prolong the life of the battery for those who tend to use their Surface plugged into a power source most of the time, so it keeps it around 50%.

Is there a way to set the percentage higher, like 80% as I mostly use mine in a dock fashion where it's powered from wall / AC power (maybe 3/4 of the time) but I do also use it on the battery but would like to have more charge for the times when I do use it on the battery. I know some people have said to download the Surface app which I did, but I can't seem to be able to adjust the max charge level to more than it's default (50%). Obviously I can enable/disable the feature as needed in the UEFI BIOS but this gets to be a hassle.

Does anyone know how I can increase the max charge level but keep the Battery Limit option enabled?

Answer 1

@sirhawkeye

Yes, the 50% setting is only configurable through the UEFI. 50% is generally used for Kiosk mode and for 24/7 always on situations. I believe that if you remove the 50% limit in the UEFI and shut down and restart your SP8, SmartCharging to 80% will kick in when appropriate. The feature to use the Surface App to manually limit charging to 80% is not available in the Surface Pro 8. Right now, it looks like the ability to manually set to 80% is only available in recent ARM Snapdragon powered Surface devices. Sorry that Jeric steered you in the wrong direction.

Answer 2

@ Jeric,

WHAT? The issue impacted ARM devices, SL7 and Surface Pro 11. NOT Surface Pro 8. Perhaps you should read that thread (and a fix is being tested in the Insiders channels). And, this was not the question that Sirhawkeye asked.

Answer 3

Hi sirhawkeye,

This is now a known limitation with the Battery Limit feature on Surface devices, particularly the Surface Pro 8.

You can refer to the official discussion here: https://learn.microsoft.com/en-us/answers/questions/5518540/battery-limit-removed-from-uefi-but-now-only-charg

One of Microsoft Employee has posted an update regarding this behavior, and also there is a provided feedback form where you can submit your experience to help escalate the issue.

If you're looking for a workaround, you might consider disabling Battery Limit via UEFI (if still available).

Regards,
Jeric.