I know that there are several threads tied to battery drain while in sleep or hybernate mode, however, my issue is with my Surface Book "SHUTDOWN'. If i am at 100% charge and then shutdown and leave it for 1-2 weeks, it will be nearly dead when I power it on. This seemed strange so over the past 2 days I ran a test against my Surface Pro 3:
[table="width: 500, class: outer_border, align: left"]
[tr]
[td]After:[/td]
[td]Surface Pro 3[/td]
[td]Surface Book[/td]
[/tr]
[tr]
[td]24 hours[/td]
[td]100%[/td]
[td]93% (96%/84%)[/td]
[/tr]
[tr]
[td]48 hours [/td]
[td]100%[/td]
[td]87% (89%/81%)[/td]
[/tr]
[tr]
[td]72 hours[/td]
[td]100%[/td]
[td]81% (82%/79%)[/td]
[/tr]
[tr]
[td]144 hours[/td]
[td]100%[/td]
[td]75% (75%/76%)[/td]
[/tr]
[/table]
This confirmed my concern. I will check again tomorrow morning. I don't use it that often but when I want to use it I want to pull it out of the case and turn it on without having to plug it in. I called MS and they suggested factory reset, which I can do but i have a lot of stuff on it (same as Surface Pro 3) and I'm not sure I understand why the software I have installed is causing battery drain when the Surface is shut down. All I can think is perhaps there is a USB wakeup function or some other sort of wakeup function or maybe the circuit to eject the screen is running even after shutdown.
Anyone have any comments or thoughts?
(Update)
As you can see with the new measurements, the Surface Pro continues to sit at 100% even after a week. What is a little interesting with the Surface Book is that it lost nearly 6-6.5% per day, however after Friday it was off for 3 days and after being turned back on, it dropped 6% total, not 6% per day. Almost as thought it waits for some amount of time before being fully off and prior to that it drops around 6%.
Thanks,
Doug
[table="width: 500, class: outer_border, align: left"]
[tr]
[td]After:[/td]
[td]Surface Pro 3[/td]
[td]Surface Book[/td]
[/tr]
[tr]
[td]24 hours[/td]
[td]100%[/td]
[td]93% (96%/84%)[/td]
[/tr]
[tr]
[td]48 hours [/td]
[td]100%[/td]
[td]87% (89%/81%)[/td]
[/tr]
[tr]
[td]72 hours[/td]
[td]100%[/td]
[td]81% (82%/79%)[/td]
[/tr]
[tr]
[td]144 hours[/td]
[td]100%[/td]
[td]75% (75%/76%)[/td]
[/tr]
[/table]
This confirmed my concern. I will check again tomorrow morning. I don't use it that often but when I want to use it I want to pull it out of the case and turn it on without having to plug it in. I called MS and they suggested factory reset, which I can do but i have a lot of stuff on it (same as Surface Pro 3) and I'm not sure I understand why the software I have installed is causing battery drain when the Surface is shut down. All I can think is perhaps there is a USB wakeup function or some other sort of wakeup function or maybe the circuit to eject the screen is running even after shutdown.
Anyone have any comments or thoughts?
(Update)
As you can see with the new measurements, the Surface Pro continues to sit at 100% even after a week. What is a little interesting with the Surface Book is that it lost nearly 6-6.5% per day, however after Friday it was off for 3 days and after being turned back on, it dropped 6% total, not 6% per day. Almost as thought it waits for some amount of time before being fully off and prior to that it drops around 6%.
Thanks,
Doug
Last edited: