11-11-2011 02:01 PM
11-12-2011 07:13 AM
11-12-2011 08:04 AM
11-12-2011 09:13 AM
11-12-2011 09:17 AM - edited 11-12-2011 09:19 AM
Erm. NotebookCheck's review of the W520 lists DVD playback as 5 hours 28 minutes.
I leave max CPU to 25% on battery as I really don't plan to do much with it on the go (taking notes, surfing the web, etc.).
If I had a ZPM, I'd be using it for more than powering my laptop.
11-12-2011 11:14 AM - last edited on 11-12-2011 11:41 AM by andyP
Battery life all depends on the amount of power you use - IF you use a lot of CPU, a lot of graphics and a lot of harddisk ANY computer on ANY battery wont run more than a few hours.
The capacity of the battery divided by the used power is equal to the battery life. Thats a fact.
When i use my X220 for normal office work; mail, word, excel, surfing and listening to music, i get 10-11 hours on my 9 cell battery - and that is fine.
BUT i have to select/make a proper power scheme for this purpose - like this:
Sorry that it is in danish, but i guess you get it anyway.
I will add, that i have a HP probook at work too, and with the same setting (in windows) i get only 3-4 hours on the battery (6 cell) - so i have to charge the battery several times every day. With the X220 i can use it for a whole day - put it in the dock when i get home and is ready for a new 'cord-less' day again!
Moiderator note; removed anomaly that was causing a pw window to open
11-12-2011 11:50 AM
Linux has been having some power issues for mobile hardware and you will probably get less battery life than in Windows, I suggest you see http://www.phoronix.com/scan.php?page=news_item&px=MTAxNDM to read up on some potential fixes.
11-14-2011 08:57 PM
11-17-2011 07:47 AM
I have class from 9am to 5pm and use my X220 during that time for the whole time with my 9cell. I usually surf the web, do some word editing, maybe watch a youtube video or two but that is the extent to how I use my X220. Given that, I use the "Balanced" windows profile setting with my screen brightness on 3 and the CPU is set pretty low in the battery manager.
I usually get 8 hours with those options and occasionally have gotten up to 10 but 90% of the time I have an 8 hour battery life with my 9cell. I currently have 7 hours left at 91% battery life.
I'm happy to get 8 hours since you're right, some of the reviews I read claimed up to 12 hours so I've grown happy with 8 but 6 hours would be disappointing since other reviews claimed that the 6 cell did 9 hours haha. Tweaking the power manager is probably you're best bet and see how that goes.