Battery drain overnight while shutdown

Question

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.

Answer 1

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>

Answer 2

At the risk of repeating myself... 

If you need to use your surface laptop for something work critical & on battery only, try my solution. Since there were no references to it at all, in this race for a new firmware, I imagine that noone else has tried it.. 

I had to sit through multiple presentations from 9am til 5pm and my battery life was at 65% by the end with mixed use. (powerpoints, word docs, online articles etc) 

My solution was to switch off hibernation**:**

command prompt, **type****powercfg.exe /**hibernate off

I can now shutdown and switch on like before and it works like when I first got it. 

Good battery life and the percentage stays the same overnight unplugged.

Obviously it breaks hibernation, but hopefully when a new firmware is released to fix the battery bug, you can reactivate hibernation by going 

command prompt, **type****powercfg.exe /**hibernate on

Answer 3

Is anyone else as tired of this as I am? 

I shut down my fully charged laptop for the night, took a shower and brushed my teeth, then remembered something I needed to check, so I turn on my PC and see its 75% charge. 

Every day it's a frustrating reminder that MS has failed to address a notable problem on the most expensive laptop I've ever bought! It's been almost a month.

I will continue to include this in my posts in the hopes that it gets upvoted 1000 times! https://aka.ms/AA5w24b

Answer 4

At this point it doesn't seen that anything is going to resolve this problem except an update send out by MS. 

So seriously, everyone having this issue, keep bugging them! I know they said they're working on it or whatever, but that can mean a lot of things, and for a massive company like MS with massive products like Windows and the Surface line of devices, they have issues that are priorities and ones that aren't. This should be a priority. One of the reasons why I paid a premium price and purchased a Surface device is because I figured that something made by Microsoft themselves was sure to give me the best, bug free, Windows experience, and certainly the best support if any issues did occur. This issue is something that I've never even experienced on $200 budget netbooks! How it dealt with from this point is pretty much going to determine if I buy Surface products in the future, and whether I recommend them to friends.

Answer 5

When these devices were initially released the fast start up feature used only about 2% power overnight, this was true with Windows 10 until the Creators Update last year (around the time Microsoft decided they did not need a proper Quality and Assurance testing team (and sacked most of them). Since then the fast start uses anything from 12% to 20%. 

All surface products do not turn off completly, even using a command like Shutdown in the command line does not completely turn off all the components. Some live functions remain for network wake-up and clock wake functions. But as I have found out from research the power efficiency has dropped dramatically in recent updates, and Microsoft apparently doesn't give a **** !

I have not seen anything about some of the more extreme examples of battery usage or reporting with any concrete answer, but I'd return any unit still under warrenty if it was any more that 12% at the moment. Maybe Microsoft will push out a working upodate that returns efficency back to 2%, but don't hold your breath.