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My laptop's battery drains when in hibernate mode. How can I troubleshoot / fix?

My laptop's battery drains when in hibernate mode. How can I troubleshoot / fix?

I've got a Sony Vaio VGN-Z21VN. When I put it into hibernate (not sleep) the battery drains - after 24 hours or so the battery is dead.

Asked by: Guest | Views: 70
Total answers/comments: 2
Guest [Entry]

"Shut down the computer, rather than hibernate it.

If it drains after 24 hours, then the fault is a bad battery.

If it does not drain after 24 hours, then it's not really hibernating. The computer is powering up for some reason."
Guest [Entry]

"It turns out that the battery drains even when my Sony Vaio Z is switched off (about 10% every 24 hours)

There's a 50 post forum thread on this 'design feature', but no way to fix it:

http://forum.notebookreview.com/showthread.php?t=299109"