This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Lately, after I shutdown (full shutdown, not sleep or hibernate) my fully charged Surface Laptop 2 at night, I turn it on in the morning and find that the battery has lost around 25% power overnight! What's going on and how can I fix this?
The laptop is only about 6 months old and the battery seems to be in good health.
I've reported this on the MS Feedback Hub. Please upvote it so that it gains attention: https://aka.ms/AA5w24b
Also be sure to report there as well if you are experiencing this issue.
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Please see https://support.microsoft.com/en-us/help/4469839/surface-laptop-2-update-history
This should be available on Windows Update:
October 10 release
The following updates are available for all Surface Laptop 2 devices running Windows 10 April 2018 Update, version 1803 or greater:
| Windows Update History Name | Device Manager Name |
|---|---|
| Surface – Firmware – 145.501.139.0 | Surface System Aggregator– Firmware<br><br><ul><br><li><span>145.501.139.0 helps improve battery life.</span></li></ul> |
Well, Microsoft hid this one and most likely comes across when the machine performs a reboot to do the setup of the new build received. It does not show up on any list. Now, this is pertaining to "builds" for the Windows Insider program. On normal RTM releases, Firmware updates do appear in the Windows Update panel.
You will get the Firmware update!
The Insider builds are an experiment for the next RTM release. They test internally to make sure it doesn't destroy anything and then send it out to the Insiders to get feedback.
This particular firmware update is working so far.
Now, that hack you have been doing with the CPU - change it back to normal! I don't care about what articles you have been reading about hyperthreading, most of those are bogus. Intel has a lot of issues regarding their CPUs even when operating normal. Also, recommend to stay away from the BIOS as much as possible. You can accidently crash it and turn the machine into a brick in less than one second (my first Surface Laptop did that).
You will get the Firmware Update that the Insiders are getting. Microsoft's next even is October the 2nd which is the date I keep seeing and Microsoft generally releases the next upgrade around noon on the same day.
Be patient!
@James
"Now, that hack you have been doing with the CPU - change it back to normal! I don't care about what articles you have been reading about hyperthreading, most of those are bogus. Intel has a lot of issues regarding their CPUs even when operating normal. Also, recommend to stay away from the BIOS as much as possible. You can accidently crash it and turn the machine into a brick in less than one second (my first Surface Laptop did that)"
Its not a Hack James, disabling and managing BIOS / Firmware features has been a known thing since the inception of Ent. usage via @Surface (https://docs.microsoft.com/en-us/surface/get-started) , for consumer / retail users, Windows Insider Program was emphasized enough to say, it is beta software, not final code nor signed for release (RTM - Release to Manufacturers), currently 1909 is avail. via MSDN subscribers. The article I had reference is from the actual developers of SMT, with that in mind I agree for the most part be patient, its just around the corner, but for users that are not on Win. Insider program nor have the time to worry about a non stable release of software can not, nor will not deal with battery degradation due to software, so to fully answer everyone, disable for now, once the firmware and 19H2 is in the public hands then re-enable SMT. Also disabling SMT is non-destructive to the system, revert back whenever with one click.
You will get the Firmware Update that the Insiders are getting. Microsoft's next even is October the 2nd which is the date I keep seeing and Microsoft generally releases the next upgrade around noon on the same day.
the firmware release is NOT tied to the release of 1909.
It doesn't matter if it is tied to it or not. During the setup process, the system does download updates and those can be anything and does not have to be associated with the build itself.
Microsoft did this before with the RT machines to lock the boot loader so that it cannot be changed. That was a BIOS patch which "IS" a firmware update on its own and it was hidden in a Cumulative Update to keep it hidden! So "YES", Microsoft does hide some updates!
Can anyone confirm or deny that there is any fix/workaround relevant to the loss of battery on shutdown for the SP4 (not SP6)??
The release preview appears to only be for the SP6 correct?
Reading all of this is a mess.
