10 Laptops with the Longest Battery Life
What good is a notebook that dies two hours after it’s unplugged from the wall? Not much. We’ve created a list of the clamshells that ran the distance on the LAPTOP Battery Test (continuous web surfing over Wi-Fi). Each machine lasts (at least) to the 8-hour marker, but some systems use larger, sold-separately batteries to stay active up to 20 hours. See for your yourself below.
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Aug 16, 2012 02:30 PM EDT by 













April 14th, 2011 at 4:59 pm
I had the Samsung N110 and I loved the battery life. I could go from JFK airport to LAX including time in airport waiting for flight on one battery charge. During this last CES it was great to have I didn’t worry about the battery until end of day. It doesn’t take long to recharge from empty battery either. Only downfall is it got hot quickly and was kinda slow compared to other laptops on the market.
August 6th, 2011 at 8:05 am
Well battery life depends. If you have a monster 18.4″ with discrete graphics cards expectations are alot less. But with the new Sandy Bridge processors your getting then you ever had before.
December 14th, 2011 at 3:12 am
Dear Jake:
Where can I get a monster 18.4″ with discrete graphics cards with the new Sandy Bridge processors ?
And Hi-Life batteries for geological field work.
Thanks,
Jamshed
roameri@vsnl.com
August 16th, 2012 at 4:53 pm
Jamshed: Your best bet would be a workstation from Lenovo or Dell.
August 25th, 2012 at 8:35 am
How about testing a 12.5″ HP 2570P with 100Whr 9-cell? It claims 9-15hrs battery life in it’s specs. A system with a socketted CPU (so can be user upgraded) and optical drive. A decent alternative to a 12.5″ Lenovo X230 which has a soldered CPU and no optical drive.
August 25th, 2012 at 10:57 am
@nando4,
Thanks. We’ll try to get one in.
October 12th, 2012 at 11:46 am
Good articles=))))
December 10th, 2012 at 11:44 pm
What settings did you used during the tests??
December 17th, 2012 at 9:14 pm
Given some laptops are tested with sheet batteries, why not test the Dell e6430 with its battery slice as well? Over 30 hours of runtime with its battery slice option
April 25th, 2013 at 5:02 pm
I think the FatBatt Fifty is a more accurate list. They update it too but I don’t know how often.