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- Full battery drain on sleep mode

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09-27-2019 11:05 AM
Hi, having my (2 months old) laptop 100% battery, I put it on sleep mode overnight, but the next morning it has 0% battery. I looks like it has been turned on the whole night. I have tried old fixes from old posts.. no USB is connected, apparently no activity when sleeping (no noises), but it keeps warm ... strange! ... it was not happening before, I don't know if it was a windows update or HP drivers update .. but no new software installed on my side. Please help... this laptop is completely uselss when I'm traveling or just after long driving ...
Solved! Go to Solution.
09-27-2019 04:20 PM
It COULD be a Windows Update issue as folks are reporting hotter CPUs with recent updates, implying that the processors are being kept busy.
It could also be that hybrid-sleep, as set by FastStartup, is the culprit. This is different from Fast Boot, which is a BIOS/UEFI option.
Fast Startup is supposed to dramatically speed up the booting process, but in some PCs, it actually slows it down or causes it to hang. It's also a new form of hibernation known as hybrid sleep -- and this causes battery drain to maintain the state of the PC while turned off.
Disabling Fast Startup might fix the booting problem.
There are two ways to disable FastStartup in Win10: (1) through the Control Panel, and (2) through an elevated command prompt.
Control Panel - Open Control Panel --> Power Options.
Select "Choose what the power buttons do"
Select "Change settings that are currently unavailable"
At the bottom of the Window, under Shutdown settings, uncheck the box regarding fast startup
Elevated command prompt - run the following command:
REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Power" /V HiberbootEnabled /T REG_dWORD /D 0 /F
In both cases, reboot Windows.
NOW, FastStartup is disabled.
See if that helps.
If it does not, as in my laptop, you would have to consider completely shutting it down when not in use. I know that makes startup longer, but slower starting is better than a dead laptop.
I am a volunteer and I do not work for, nor represent, HP
09-30-2019 08:55 AM
Hi WAWood,
As mentioned, i have already tried several comments and recommendations from old posts.. the one you are mentioning has been recommended widely before for problems similar to mine.. in my case it didn't work. I still have the problem happening.. Just to remark that, in my case, the problem is only reproduced in sleep mode and NOT when the laptop is turned off. I have already almost 2 weeks with this problem.. it's really problematic!! I usually have continuous work to do and I simply can't keep saving closing programs and documents (sometimes up to 15) just because my HP laptop's sleep mode is useless. Hope someone can help.
09-30-2019 11:58 AM
Hello everyone,
Just to let you know that after my last post, I contacted HP support, they helped me remote (an agent called Naveed), so he upgrade the Bios manually and then upgraded windows. After all the process I've been testing my laptop (and drove for an hour) on sleep mode, and found that the battery is only 1 percent less since the time a put it to sleep. Beside the laptop is not warm as it used to be when the problem appeared. So, promising. I will test tonight with longer permanency on sleep mode and let you know, hopefully, confirming the issue was solved. Thanks Naveed.