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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> |
I know about fast start. I mentioned above, I shut it off and I still lost about 9% overnight.
And apparently, with fast start still off, I lost over 20% today while my PC was off for less than 20 minutes! I don't see how that's possible given that my battery lasts for 10+ hours when the computer is in use!
My previous Surface Pro 6 that I took in for replacement due to the battery issues I was able to observe a 25% loss when the device was shut down and within a 20 minute span!
With my latest replacement unit here is what I have found out so far, and I hope this is a solution.
I charged my Surface unit to 100%, then used it unplugged until the battery depleted and died on me, then I charged it all the way back up to 100%.
It is too early to tell if that solved the issue but so far I am not seeing any drop when I turn on my device. I will update after a week, and a month after.
This would also seem to suggest that it's not actually a battery drain issue but rather poor calibration of the software reading the charge. That's a less troubling problem, at least, but still very annoying and disappointing for MS's flagship devices. Regardless of what's going on I would very much like a fix.
My Android Phone (LG V20) and my Lenovo Thinkpad P50 both have battery calibration software to help extend battery life, and I can buy and install new replacable batteries for both of them without having to perform major screen surgery to it. I have my P50 set to stop charging at 85% to slow down battery degradation and it works just fine.
Surface products could use a similar battery utility.
