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Split from this thread.
I have been noticing that when I shutdown my surface book, when I power it on the next day the battery has drained some. If I leave it off for a couple of days it will drain down from 100% to around 85% or lower.
I disabled fast startup... and then just decided to disable hibernation altogether. That didn't help.
I have windows hello disabled, but that shouldn't matter anyway since I'm shutting it down, not sleeping.
Some searching and I found a general windows 10 issue with the "Intel Management Engine Interface" driver. Some say that v11 can cause this issue. One solution that I have seen suggested is to go into device manager and in the power management tab for this device uncheck the option that allows windows to power it down to save power. I tried that and it didn't help.
Others have suggested downgrading the driver from v11 to v9 or v10, but I don't know where to get v9 or v10 of this driver that is compatible with the surface book. Anyone know if one of the downloads on Intel's site would be compatible?
So, has anyone else noticed this issue and know of a fix?
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.
So after applying the latest update from yesterday and shutting down my SB at 100%, I finally booted up my SB about an hour or two ago and it stayed at 100%. Seems to have improved so far.
I installed the Feb 17 update yesterday and shut down in the early evening and booted up around 8:30 this morning. Both batteries were at 100% unlike before. Will continue to monitor over the next few days to see if this continues to work.
I bought surfacebook 7 days ago. Before the newest update, my SB's battery would loss 10% per day when shutdown. But after the update, it only drain 2% per day. It didn't fully fix for me.
Mine's definitely fixed. This drain has been one of two big issues I have with the SB since buying it in November. I only rarely use my SB in the evening. As a result I routinely shut it down at 5pm and boot it at 8:30am the following morning. One battery is always at 92-93% and the other at 100%. Over a weekend its usually around 85% on BOTH batteries on Monday morning. After this president's day long weekend my SB was at 75% on BOTH batteries. This drain occurred powered off from 100% at 5pm on Friday to 8:30am on Tuesday.
I know there has been some mild debate in this thread regarding whether this is acceptable or not. Personally I find this incredibly unacceptable. It was stated at the press announcement ON STAGE that this device would not have any drain when powered off. It was one of the reasons I bought it. I should be able to shut down my laptop on a Friday and boot it the following Tuesday after a long weekend and have confidence the battery will be at the same or NEAR the same level of charge. I shouldn't have to remember to take it out of my bag the night before and top it off to 100% after sitting OFF in my bag for 3 days.
Anyways, I came pretty close to marching this thing into Best Buy on Tuesday evening after it draining so bad over the weekend and demanding a refund. Instead on Wednesday I decided to do a complete fresh reinstall from a USB image rather than just a Reset. After it was complete I received this update almost immediately. I shut my laptop down around 5:30 on Wednesday evening and Thursday morning it was at 100%. Last night (Thursday) I made sure it was charged and disconnected it and left it on my desk at 5pm in hibernate. This morning at 8:30am it read 100% and I verified the mWh are basically unchanged using Nirsoft's BatteryInfoView.
For me, the issue is confirmed to be fixed. I'm not sure what advice there is for anyone still experiencing it.
So after applying the latest update from yesterday and shutting down my SB at 100%, I finally booted up my SB about an hour or two ago and it stayed at 100%. Seems to have improved so far.
Oh god, don't do this. The SB (as with most modern laptops) doesn't report correct battery when the battery is over 96-97% charged. It will always say 100% in this range to avoid user misinterpretation of the anti-overcharge region (the region between 95-100% where the battery is allowed to drain to avoid constant charging when connected to AC power).
If you want to do a real test, first discharge to 95% and then test. Also, use raw mWh values, not %, since % is only reported to zero decimal places on windows.
So after applying the latest update from yesterday and shutting down my SB at 100%, I finally booted up my SB about an hour or two ago and it stayed at 100%. Seems to have improved so far.
