Take a look at our
ThinkPads.com HOME PAGE
For those who might want to contribute to the blog, start here: Editors Alley Topic
Then contact Bill with a Private Message

P51 using the battery when shut down?

P50/P70 and later specific matters only
Post Reply
Message
Author
Greg Gebhardt
thinkpads.com customer
thinkpads.com customer
Posts: 843
Joined: Tue May 11, 2004 6:29 pm
Location: Jacksonville, Florida

P51 using the battery when shut down?

#1 Post by Greg Gebhardt » Sat Jan 06, 2018 3:56 pm

I did not use my P51 for 2 months and when pulled from the desk and plugged in, it’s battery was dead. Puzzled I charged it up to 100% and put in back in the desk last week. This week, one week later, I pull out the laptop and it is down to 80%! Where did the 20% go while it was shut down. The laptop has not been doing this from when I purchased, it seems like it started later like a few months ago. I have pulled it out and started it with 98% power remaining after two to three weeks in the past so something has changed.

What setting could have changed in an update that would cause this. I was thinking maybe the USB is still powered up when my laptop is off, do not know what else it could be and am hoping for experts, here, helping me out.

Happy New Year people, thanks if you can help.

Greg in Jacksonville FL
Greg Gebhardt
Jacksonville, Florida

dr_st
Senior ThinkPadder
Senior ThinkPadder
Posts: 7123
Joined: Sat Oct 29, 2005 6:20 am

Re: P51 using the battery when shut down?

#2 Post by dr_st » Sun Jan 07, 2018 3:25 am

Try disabling network devices (wired or wireless) one at a time and see if the problem continues.

Also run powercfg -devicequery wake_armed from command prompt and see which devices are allowed to wake the system.
Current: Thinkpad 25 (20K7), Yoga 14 (20FY), X220 4291-4BG, T410 2537-R46, T60 2007-QPG, T42 2373-F7G
Collectibles: T430s (IPS FHD + Classic Keyboard), X32 (IPS Screen)
Retired: X61 7673-V2V, T60 1952-F76, A31p w/ Ultrabay Numpad

Greg Gebhardt
thinkpads.com customer
thinkpads.com customer
Posts: 843
Joined: Tue May 11, 2004 6:29 pm
Location: Jacksonville, Florida

Re: P51 using the battery when shut down?

#3 Post by Greg Gebhardt » Sun Jan 21, 2018 5:29 pm

OK, figured out what was going on and posting here Incase anyone else has this problem.

My laptop was losing like 20% power each week when shut off. It turned out to the the “USB always on” feature. Some how in the updates from Lenovo this got toggled to,the on position. Was not there when I bought it as it never lost more than a few percent in a couple weeks. I knew something had changed and was going though all my settings and there is was, the USB always on was on which ment even when my laptop was shut down the one USB port was powered up.

Hope it help someone else. I never turned this on so it was an update that caused this.

My P51 has been awesome!!!
Greg Gebhardt
Jacksonville, Florida

Greg Gebhardt
thinkpads.com customer
thinkpads.com customer
Posts: 843
Joined: Tue May 11, 2004 6:29 pm
Location: Jacksonville, Florida

Re: P51 using the battery when shut down?

#4 Post by Greg Gebhardt » Mon Feb 05, 2018 11:32 am

OK, after doing a bit more study, I found out it was fast start for Win10. When activated it would suck power from my battery even when turned off.

Beware if you are a laptop user and fast start will drain your battery to DEAD in just three weeks. You can turn it off but need to check after every Win Update as it could be toggled back on again.
Greg Gebhardt
Jacksonville, Florida

dr_st
Senior ThinkPadder
Senior ThinkPadder
Posts: 7123
Joined: Sat Oct 29, 2005 6:20 am

Re: P51 using the battery when shut down?

#5 Post by dr_st » Mon Feb 05, 2018 11:59 am

Greg Gebhardt wrote:
Mon Feb 05, 2018 11:32 am
OK, after doing a bit more study, I found out it was fast start for Win10. When activated it would suck power from my battery even when turned off.
Must be a bug. Normally Windows does not arm wake-up when going down to 'fast startup'. Essentially 'fast startup' = hibernate with wake-up filters turned off (at least as far as network adapter are concerned).
Current: Thinkpad 25 (20K7), Yoga 14 (20FY), X220 4291-4BG, T410 2537-R46, T60 2007-QPG, T42 2373-F7G
Collectibles: T430s (IPS FHD + Classic Keyboard), X32 (IPS Screen)
Retired: X61 7673-V2V, T60 1952-F76, A31p w/ Ultrabay Numpad

RealBlackStuff
Admin
Admin
Posts: 18459
Joined: Mon Sep 18, 2006 5:17 am
Location: Mt. Cobb, PA
Contact:

Re: P51 using the battery when shut down?

#6 Post by RealBlackStuff » Mon Feb 05, 2018 12:01 pm

Easy way out: if you disable Hibernate, you automatically also disable Fast Startup.
Lovely day for a Guinness! (The Real Black Stuff)

Check out The Boardroom for Parts, Mods and Other Services.

dr_st
Senior ThinkPadder
Senior ThinkPadder
Posts: 7123
Joined: Sat Oct 29, 2005 6:20 am

Re: P51 using the battery when shut down?

#7 Post by dr_st » Mon Feb 05, 2018 1:22 pm

RealBlackStuff wrote:
Mon Feb 05, 2018 12:01 pm
Easy way out: if you disable Hibernate, you automatically also disable Fast Startup.
It's not any easier - they are on exactly the same settings page.
Current: Thinkpad 25 (20K7), Yoga 14 (20FY), X220 4291-4BG, T410 2537-R46, T60 2007-QPG, T42 2373-F7G
Collectibles: T430s (IPS FHD + Classic Keyboard), X32 (IPS Screen)
Retired: X61 7673-V2V, T60 1952-F76, A31p w/ Ultrabay Numpad

Greg Gebhardt
thinkpads.com customer
thinkpads.com customer
Posts: 843
Joined: Tue May 11, 2004 6:29 pm
Location: Jacksonville, Florida

Re: P51 using the battery when shut down?

#8 Post by Greg Gebhardt » Tue Feb 06, 2018 8:03 am

No matter how you do it, it needs to be done if using a laptop as in three weeks my P51 battery was dead flat with 0%. Not good on the battery for sure.

This setting was adjusted by a Windows Update months after I got my P51 because it did not always do this. I suggest checking after every update in the future.
Greg Gebhardt
Jacksonville, Florida

Post Reply
  • Similar Topics
    Replies
    Views
    Last post

Return to “ThinkPad P50/P70 and later Series”

Who is online

Users browsing this forum: No registered users and 1 guest