Laptops with the Longest Battery Life

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No matter how stacked its specs are, a laptop is useless if it can't hold a charge. Fortunately, there are plenty of notebooks that go the distance. Using our Laptop Mag Battery Test, which involves continuous Web surfing over Wi-Fi at 100 nits of brightness, we've identified the longest-lasting notebooks on the market. We're talking more than 10 hours of endurance, which should more than suffice for that cross-country flight, a long day of meetings or multiple, back-to-back classes.

Lenovo ThinkPad T470 (17:25)

If you want a truly fantastic keyboard, durable chassis and strong performance, look no further than the ThinkPad T470. The T470 makes room for an optional extended battery that gives this 14-inch laptop over 17 hours of endurance (with its non-touch display). You can charge the laptop over a proprietary ThinkPad connector or via its Thunderbolt 3 port, which allows you to juice the laptop and output to multiple monitors over a single wire. A durable, MIL-SPEC-tested chassis helps this long-lasting business notebook stand up to the rigors of all-day business travel.

Pros: Best-in-class keyboard; Speedy PCIe SSD; Durable design; Thunderbolt 3 charging; 
Cons: Relatively-dim screen; Tinny sound

Key Specs: 14.1-inch display; Up to 1920 x 1080 screen resolution; Up to Core i7 CPU; 3.48 pounds / 3.88 pounds (6-cell battery)

Lenovo ThinkPad X270 (13:51)

Weighing 3 pounds (3.4 with extended battery), the 12.5-inch ThinkPad X270 is light enough to carry anywhere and small enough to fit easily on most airplane tray tables. Its 12.5-inch display outputs a vibrant 88 percent of the sRGB color gamut while a snappy keyboard and accurate pointing stick make editing documents a pleasure. Unlike many Ultrabooks, the X270 has plenty of ports, including a USB Type-C connector, multiple USB 3.0 connectors, an SD card reader and an Ethernet connector.

With its extended battery on board, this powerful laptop lasts nearly 14 hours on a charge. If that's not enough endurance for you, you can carry a spare battery and swap it in, without even turning off the computer.

Pros: Great keyboard; Colorful screen; Hot-swappable battery; Light weight
Cons: No Thunderbolt 3 port; Mediocre battery life with 3-cell battery

Key Specs: 12.5-inch screen; Up to 1920 x 1080 resolution; Up to Core i7 CPU; 3 pounds / 3.4 pounds (with 6-cell battery)

Dell XPS 13 (13:49)

Our favorite laptop overall, the Dell XPS 13 uses a nearly-bezel-free Infinity display to pack a 13-inch panel into a chassis that might otherwise hold an 11-inch laptop. Despite its slim, 0.6-inch thick dimensions and 2.7-pound weight, Dell's laptop offers nearly 14 hours of battery life with its standard, 1080p screen.  The touch version, which has a 3200 x 1800 display, lasts over 9 hours on a charge.

Add to that an Intel 7th Gen Core i3, i5 or i7 CPU, a speedy PCIe SSD and plenty of ports and you have the best consumer Ultrabook around. A Killer Wi-Fi card and Thunderbolt 3 charging round out this impressive package.

Pros: Very light; Great port selection; Gorgeous, nearly-bezel-free display/ Strong Wi-Fi
Cons: Awkward webcam placement

Key Specs: 13.3-inch screen; Up to 3200 x 1800 resolution; Up to Core i7 CPU; 2.7 pounds

Dell Inspiron 11 3000 (13:39)

Starting at just $199, Dell's lightweight laptop proves that you don't have to spend a lot of money to get truly epic battery life. This Celeron-powered, 11.6-inch laptop offers just enough performance for web surfing and light productivity. At just 2.4 pounds, the Inspiron 11 3000 is light enough to carry anywhere and, with over 13 hours of endurance, you can leave the plug at home.

The Inspiron 11 3000 is also one of our top choices for kids, because of its small size, low-price and attractive blue and red color options. For better multitasking, we recommended spending $50 over the base price to get a configuration with 4GB of RAM. 

Pros: Colorful design; Light weight; Inexpensive; Good audio
Cons: Dim screen

Key Specs: 11.6-inch, 1366 x 768 screen; Intel Celeron N3060 CPU; Up to 4GB of RAM; 32GB  eMMC Storage; 2.4 pounds

Lenovo ThinkPad 25 (13:14)

To celebrate the 25th anniversary of ThinkPad, Lenovo has taken a T470, dialed up its components to 11 and added a few cool retro design elements. In place of the standard island-style keyboard, Lenovo has put the classic 7-row keyboard, which offers a superior user experience thanks to its dedicated media controls, enlarged Esc and Delete keys and page forward / page back buttons. A soft-touch palmrest is more comfortable against your wrists than the hard, coarse plastic of the T470.

With its optional 6-cell battery on-board, the ThinkPad 25 lasted a strong 13 hours and 14 minutes on our  battery test. However, that time is 4 hours less than the T470 we tested, because the ThinkPad 25 comes standard with a touch screen and an Nvidia GPU, both of which use more power than the parts in our T470. 

Pros: Attractive retro design; Superior typing experience; Strong performance
Cons: Only one configuration; Expensive

Key Specs: 14-inch, 1920 x 1080 screen; Core i7-7500U CPU; Nvidia 940MX GPU; 16GB of RAM; 512GB SSD; 4G Modem

Microsoft Surface Book (12:29)

When coupled with its keyboard dock, Microsoft’s detachable notebook will last up to 12.5 hours, provided you buy it with integrated graphics. A 13.5-inch, 3000 x 2000-pixel display is gorgeous to look at and a magnetically attached stylus makes writing a pleasure. Starting at $1,499, the Surface Book is an expensive system, but worth every penny.

Pros: Brilliant screen; great performance; Highly-functional design
Cons: Uses last-generation CPU; Expensive; Detached tablet battery life is short

Key Specs: 13.5-inch, 3000 x 2000 screen; Up to Core i7 CPU; Up to Nvidia GeForce 960M graphics; 3.34 pounds

Dell Latitude 7280 (12:29)

With its extended battery on board, the Dell Latitude 7280 lasts for 12 hours and 29 minutes on a charge. This 12-inch laptop has a really light starting weight of 2.8 pounds and a durable MIL-SPEC-tested chassis that can survive drops from up to 30 inches, along with extreme temperatures and pressure.

A luxurious soft-touch deck and deep key travel provide an excellent typing experience while an optional infrared camera lets you log into Windows 10 using facial recognition.

Pros: Speedy performance; Durable chassis; Strong typing experience
Cons: Scratchy audio; Warm underside

Key Specs: 12.5-inch, 1920 x 1080 screen; Up to Core i7-7600U CPU; 2.8 pounds

Lenovo Yoga 920 (12:22)

Lenovo's flagship consumer 2-in-1 has great performance and even better aesthetics. Thanks to a quad-core, 8th Gen Core i7 CPU and a speedy PCIe SSD, the Yoga 920 can handle productivity tasks with aplomb. However, you may be distracted from your tasks when you spend time staring at its gorgeous bronze-colored chassis, super-thin bezel and colorful display. Best of all, it lasts over 12 hours on a charge.

Pros: Attractive bronze chassis; Powerful 8th Gen Core i7 performance; Rich audio playback
Cons: Somewhat shallow keyboard

Key Specs: 13.9-inch, up to 4K display; NVMe PCIe SSD; 16GB of RAM; 3 pounds

Dell Latitude 5280 (12:21)

Made for serious productivity, the 12-inch Latitude 5280 features a snappy keyboard, durable chassis and plenty of ports, including an old-fashioned VGA connector and a modern USB Type-C port. Best of all, with its extended battery, the Latitude 5280 lasts over 12 hours on a charge.

Pros: Great performance; Comfortable keyboard; Plenty of ports
Cons: Dull display; Warm temperatures

Key Specs: 12.5-inch, 1366 x 768 screen; Up to Core i7 CPU; 3.2 pounds

Lenovo ThinkPad X1 Carbon (12:21)

The 2017 (aka 5th Generation) model of the ThinkPad X1 Carbon is the longest-lasting unit yet, enduring for a full 12 hours and 21 minutes on the Laptop Mag Battery Test. Even better, the X1 Carbon slimmed down to a feather-light, 2.49 pounds while adding an Intel 7th Gen Core Series processor, a soft-touch chassis and a Thunderbolt 3 port for charging and data.

Pros: Luxurious soft-touch design; Colorful display; Fantastic keyboard; Very light
Cons: Expensive; Tinny audio

Key Specs: 14-inch screen; Up to 2560 x 1440 display;  Up to Core i7 CPU; Dual Thunderbolt 3 ports; 2.49 pounds

Lenovo ThinkPad X1 Yoga (12:06)

The best business 2-in-1 you can buy (and one of the best 2-in-1s of any type), the ThinkPad X1 Yoga combines a gorgeous screen, comfortable keyboard and soft-touch design with strong performance and over 12 hours of battery life. The 3.2-pound X1 Yoga bends back seamlessly into tent, tablet or stand modes while the included active stylus makes it easy to write or draw. The 14-inch display is extremely colorful and even comes with an optional OLED panel which makes it even more vibrant.

Pros: Durable design; Comfortable keyboard; Thunderbolt 3; Colorful screen
Cons: Expensive; Hinge is a little stiff

Key Specs: 14-inch screen; Up to 2560 x 1440 display; Up to Core i7 processor; 3.2 pounds

Dell Latitude 5480 (11:37)

Dell's 14-inch business laptop lasts over 11 and a half hours on a charge, while offering a comfortable typing experience and a durable design. The optional 1080p screen is colorful, but we wish it were a little brighter.

Pros: Strong performance; Good audio output; Durable design
Cons: Dim, dull display; Slow SSD

Key Specs: 14-inch screen; Up to 1920 x 1080 resolution; Up to Core i7 CPU; 4 pounds

Dell Inspiron 15 7000 Gaming (11:23)

The Inspiron 15 7000 lasts 11 hours and 23 minutes on a charge, much longer than any other gaming rig we've ever tested. Starting at $799, this affordable 15-inch laptop features a speedy quad core processor with an Nvidia 1050 or 1050 Ti graphics card that's good enough to play high-end games at medium settings. The black and red chassis has a unique and compelling look.

Pros: Attractive red and black chassis; Solid graphics performance; Comfortable keyboard
Cons: Dull display; Warm bottom

Key Specs: 15.6-inch screen; Up to 3840 x 2160 resolution; Quad-core Core i5 / i7 CPU; Up to Nvidia 1050Ti GPU; 5.8 pounds

Asus Chromebook Flip C213SA (11:08)

This 11.6-inch, education-focused Chromebook can endure 3.9-foot drops onto concrete and over 11 hours of continuous use. This indestructible 2-in-1 also features a fantastic, tactile keyboard and the ability to run Android apps within Google's browser-centric OS.

Pros: Extremely durable; Runs Android apps; Great keyboard
Cons: Modest performance; Weak cameras

Key Specs: 11.6-inch, 1366 x 768 screen; Intel Celeron N3350 CPU; 4GB of RAM; 32GB of eMMC Storage; 2.8 pounds

Acer Chromebook R 13 (11:00)

This Chromebook 2-in-1 features a sharp, 1080p display and a premium aluminum design. The bendback chassis and touch screen make it ideal for running Android apps on top of Google's browser-centric OS. You'll also have 11 hours to enjoy the Acer R 13 between charges.

Pros: Runs Android apps; Comfortable keyboard; Premium design
Cons: Mediocre performance; Flat audio

Key Specs: 13.3-inch, 1920 x 1080 screen; 4GB of RAM; 32GB eMMC memory; 3.2 pounds

Acer Aspire E 15 E5-575-57D4 (10:59)

One of the best bargains in tech, the Acer Aspire E 15 E5-575-57D4 (say that three times fast) has really strong specs for the money and even stronger battery life. For just $579, this 15.6-inch laptop gives you a 1080p screen, a Core i5 processor, a 256GB SSD and Nvidia 940M graphics.

At 4.97 pounds and 1.2-inches thick, the E 15 isn't a laptop you'll want to lug around in a bag all day, but its 10 hours and 59 minutes of battery life make it a great choice for carrying around the house. A built-in DVD burner and a wide selection of ports, including a USB Type-C connector, make this a very versatile computer.

Pros: Colorful display; Plenty of ports; Great value
Cons: Heavy; Dim screen

Key Specs: 15.6-inch, 1920 x 1080 screen; Core i5-7200U CPU; 8GB of RAM; 256GB SSD; Nvidia 940M graphics; 4.97 pounds

Apple MacBook Pro 15-inch (10:59)

Apple's high-end laptop packs a speedy, Intel 7th Generation quad-core processor, discrete AMD Radeon graphics and a sharp, 2800x1800 display. Even better, while you're enjoying all that power and functionality, you can stay unplugged for 10 hours and 59 minutes.

Pros: Light weight; Gorgeous Retina display; Snappy keyboard
Cons: No regular USB Type-A ports; Runs a bit warm

Key Specs: 15.4-inch / 2800 x 1800 screen; Quad-core Core i5 / i7 CPU; AMD Radeon graphics; 4 pounds


Asus Zenbook UX330UA (10:17)

Asus's 13-inch ZenBook UX330UA offers great battery life and an even better value. For $699, this lightweight laptop features an aluminum lid, a 1080p screen, a 7th Gen Core i5 CPU and a 256GB SSD. With the UX330UA's 10 hours and 17 minutes of endurance, you can leave the power plug at home.

Pros: Affordable Price; Attractive design; Bright, colorful display
Cons: Stiff touchpad; Can't charge over USB Type-C

Key Specs: 13.3-inch, 1920 x 1080 screen; Core i5-7200U CPU; 8GB of RAM; 256GB SSD; 2.7 pounds

HP Spectre x360, 13-inch (10:06)

One of our favorite consumer 2-in-1s is also one of the longest lasting. The 13-inch Spectre x360 lasts a full 10 hours and 6 minutes on a charge while providing a speedy PCIe SSD, premium aluminum design and snappy keyboard. A vibrant display shows 102 percent of the sRGB color gamut while a combination of USB Type-C and Type-A ports provides a lot of flexibility.

Pros: Attractive, slim design; Strong performance; Vibrant display; Comfortable keyboard
Cons: No SD card slot

Key Specs: 13.3-inch, 1920 x 1080 screen; Up to Core i7 CPU; Thunderbolt 3 port; 2.85 pounds

Laptop Mag Battery Test

Continuous web surfing over wireless until battery is drained. Higher is better.

Laptop Name: Hours/Minutes: Starting Price:
Lenovo ThinkPad T470 17:25 $873
Lenovo ThinkPad X270 13:51 $881
Dell XPS 13 (non-touch) 13:49 $799
Dell Inspiron 11 3000 13:39 $199
Lenovo ThinkPad 25 13:14 $1899
Microsoft Surface Book 12:29 $1249
Dell Latitude 7280 12:29 $1029
Lenovo Yoga 920 12:22 $1299
Dell Latitude 5280 12:21 $849
Lenovo ThinkPad X1 Carbon 12:21 $1329
Lenovo ThinkPad X1 Yoga 12:06 $1401
Dell Latitude 5480 11:37 $769
Dell Inspiron 15 7000 Gaming 11:23 $799
Asus Chromebook Flip C213SA 11:08 $349
Acer ChromeBook R 13 11:00 $397
Acer Aspire E 15 E5-575-57D4 10:59 $579
Apple MacBook Pro 15-inch 10:59 $2399
Asus ZenBook UX330UA 10:17 $699
HP Spectre x360 10:06 $999


Author Bio
Avram Piltch
Avram Piltch, LAPTOP Online Editorial Director
The official Geeks Geek, as his weekly column is titled, Avram Piltch has guided the editorial and production of since 2007. With his technical knowledge and passion for testing, Avram programmed several of LAPTOP's real-world benchmarks, including the LAPTOP Battery Test. He holds a master’s degree in English from NYU.
Avram Piltch, LAPTOP Online Editorial Director on
Add a comment
  • Leo Schumer Says:

    Where are 2017 LG Gram 13,14(60Wh/FHD), 2015 MBP13r (75Wh/Retina), Lenovo Yoga 910 (78Wh/FHD) Dell Latitude 5580(92Wh/FHD), Lenovo Thinkpad T570/P51s(104Wh/FHD) and Thinkpad T560/P50s(116Wh/FHD)? And there's more, so where are all these excellent dual-core battery champs??

  • Raja sekhar Says:

    Yeah, where is Lenovo X270, it has 21 hrs battery backup.

  • Manuel Perez Says:

    Where is the Lenovo Thinkpad x270 on the list? ??????

  • Spencer Navarra-Chew Says:

    The Toshiba Portege Z20t-B crushes 2/3rds of that list and it's last years model. The Z20t-C would give every machine listed a run for it's money.

  • wow... Says:

    the number of moronic comments here is amazing - heres some quick answers to your dumb questions:

    - we don't know why your machine is slow, nor care - Off-Topic

    - A laptop with 8 hrs battery isn't on the list, because thats about an hour less than where they cut off the list, and its nothing spectacular - thats fucking why.

    - This article isn't about why XXX model isn't available anymore...

    - "Im looking for a computer with long battery life..." - Read the fucking article above!!

    - "Please send me full details of XX model" - Do your own research? We don't work for free...

    - Dell is the best battery for Dell laptops...

    hope i could make a couple people smile :D

  • Samir Says:

    Helping? Let's see a chrome or cloud book isn't a laptop, they all have tiny screens so of course battery life is good. How about reviewing laptops we all actually buy typically 15" screens and up. While you are at it explain to these moron manufacturers we want battery life! I don't care if it is wafer thin and weighs less than a penny. Make the entire bottom a battery!

  • Vishal kumar Says:

    Dear sir
    Please tell me which company battery is good for dell laptops.

  • Collins Says:

    Interesting, i love this it is helping

  • Carl Beigle Says:

    What is the best recommended replacement "longer life" battery for HP G60 Notebook PC?

  • Sakyi Williams Says:

    Am using Lenovo G505 model number 20240. it worries me too much. it runs slow. please what is wrong with it?.

  • Aman Singh Says:

    Which laptops is best under 30000/- including battry lif ...and also gud luking...

  • Dindin Says:

    When we will see T460/T460s/T460p review?
    And which type has better battery performance than T450s?

  • Ben Myers Says:

    Now how about a project to do "long lasting" laptops, as in durable and easy to repair?

  • Naveen Panwar Says:

    I found acer aspire one cloudbook 14" best of all but I can't imagine they are not selling it in India?

  • Gabriel Says:

    What about the dell chromebook 13?

  • UConnRon Says:

    Chromebooks give the most bang for the buck. Light weight, no viruses, long battery life, automatic upgrades, and low price. I have been using computers (Apples, DOS, & Windows) since 1981. I like my Toshiba Chromebook 2 over all others.

  • Doda234 Says:

    I dont think so, I have t450s with standard batteries, it is false ads. The battery lasts barely 4-5 hrs.
    Please fix it

  • Stephen Says:

    The apple's shouldn't be considered worthy to be on this list. They're not worth it for their exorbitant price.

  • Santi Says:

    Apple laptop
    I need for all products by Apple.

  • Ikenah Says:

    Pls guys I want to get a hp laptop, but am looking for one dat can play high definition games, need ur assistance as soon as possible

  • lithic Says:

    I have been using the Lenovo Thinkpad T440s for seven months with the 6-cell external battery.

    It just keeps on going - sometimes a whole day in the office with full use(WiFi, full brightness etc.) and there's still charge left in the evenings.

    I've even taken it camping knowing that I would get reliable use for many evenings without recharging (I don't have a second external battery for it because one is enough!).

    I doubt that most, if any, of the other laptops in this review can achieve that, particularly with a 14" screen and a CORE i7 processor.

    That said, despite it's many strengths (for example, the ability to dual-boot Ubuntu without any hassles) I'm wary of Lenovo because of their fickle support and very poor communication.

  • Nathan Says:


    could be because it is lower in laptopmags battery tests.

  • saptarshi Says:

    where the fuck is sony vaio pro 13..?
    it has a battery life of 8.5 hours

  • wow Says:

    where is the asus transformer book t100?

  • Richard Outcault Says:

    I am looking for a computer for home use with a long battery life and is very productive.

  • thom Says:

    really useful

  • Missy Says:

    I'm buying my second battery for my samsung laptop, and when comparing my current battery to the pictures I see on ebay I'm finding one difference and would like to know if it makes a difference?

    I looked in my history and the last battery I bought had this title: samsung rv520 rc512 rv511 oem genuine battery 11.1v 48wh aa-pb9nc6b ba43-00282a

    On the back of the battery on the white barcode at the top, after the long barcode there is a smaller one and it either says "rev 1.0" or "rev 1.2".

    My current battery says "rev 1.0", do I need to get the "rev 1.0" one or will either work? All the other numbers and codes match up.

  • Matthew Says:

    where the fuck is the fucking lost you fucking cocksuckers

  • Dave Schaefer Says:

    Why is the HP Spectre 13t-3000 not available for purchase anymore? I really have been wanting to buy one of these, and now I see that it is no longer available. I can't seem to find a straight explanation as to why it is completely gone after only being released in Q4 of 2013. Was is recalled? Is a newer model coming out soon? Can I please get a straight answer?

  • Dave Schaefer Says:

    Why is the HP Spectre 13t-3000 not available for purchase anymore? I really have been wanting to buy one of these, and now I see that it is no longer available. I can't seem to find a straight explanation as to why it is completely gone after only being released in Q4 of 2013. Was is recalled? Is a newer model coming out soon? Can I please get a straight answer?

  • noah Says:

    can i still paly games on it and still work on it during the 20hrs and 28 mins

  • Jake Long Says:

    Why not include the rugged laptops (such as the ToughBook C2 - with 14 and 19 hour battery life options)?

  • Joena Says:

    now i am using this model . in past always facing some problem with low battery life in my laptop. this article will be helpful to those users they use laptop with low battery life.. thanks

  • Tony Says:

    Looking for help.

    Want a battery life of at least 5 hrs. of (real world use), Intel Core i7-4800MQ Processor, Windows 8.1, 17.3" Full HD Anti-Reflective Display, 16 GB of memory (crucial or top brand name), 128GB SSD + 1TB HDD, 3GB GDDR5 NVIDIA GeForce GTX 870M (or close too), Intel Dual Band Wireless-AC 7260 AC + Bluetooth Combo.... for under $2000.
    If there is such a beast, please let me know. I'm having a hard time finding one. Your help would be greatly appreciated !!!!!!

  • Jay Says:

    I am looking for a laptop that will store over 3,000 pictures, family documents, movies, voice etc. What laptop would best fit my needs

  • Alauddin Says:

    I had a Samsung band laptop at present like to have a new one .cost effective and latest version needs cooperate in this regard,

  • Barb Says:

    what do you think of a fugitsu laptop for home/business use?

  • Ihsanuddin Says:

    Please send me complete full deatails of thinkpad x-230 laptop along with price .
    thanks a lot.

  • Ihsanuddin Says:

    Dear Jake,
    How i can get that long livebattery laptop that i am living in AFghanistan

  • pp Says:

    I feeling bad about lenovo idea pad
    U430 touch.authorized in Thai don't HV this
    Model.but v can find in black market.
    In case of warranty/u know what will they say...ha ha no service parts.
    Next time for pcmag/laptop review ...l very surprise for changing the price.
    At first stage u430touch /usd623
    But today show usd700.
    So hope for more precise for reader.

  • Jimmy Says:

    Battery life depends on the size, form factor, and its internal components. But where is the Samsung series 7 Chronos, and the Ativ book 9?

  • Paul Renault Says:

    According to Panasonic's spec sheet, their CF31 has a (with no extra) battery life of 14.5 hours; easily topping the Lenovo X320's "paltry" 7 hours. Adding the media pocket battery brings the total to 21 hours. To me, this is a clear winner in this battle.

    Yes, it is a little heavy, but you don't need to carry it in a big, heavy, padded case - so what if you drop it on the sidewalk, eh?

    Bonus, you can safely use it at the beach in the sun - just rinse it off if you spill your mai tai on it.

  • John B Says:

    Acer 4810T runs 7-8hrs with stock battery. Of course no longer available since this is 3 yrs old but it is the 'John Deere" of computers, IMO. Very satisfied and would suggest that you look at the current replacement of this item in an Acer model.

  • sunny dee Says:

    The best experience I have had is with samsung NC215 notebook.
    It runs for about 8 hours when fully charged

  • Ron B. Says:

    I have a Gateway 18" display. I know it will run for about 4 1/2 hours on a single charge. I haven't tried it much longer.
    My criteria was large screen and at least 3 GB of memory. Hard drive size didn't matter a lot because I don't store a lot of games or many large programs on it. My largest game is Microsoft Flight Simulator and I have an older version of Word and Excel. I don't upgrade unless there's absolutely no way to get around it. By the way, my old laptop died after about 11 years I had to get a new one. My biggest criteria was the ability for wireless connections for my wife and I. We use Comcast and have had no problems with our computers AFTER they came out and buried our phone lines.

  • theEVT Says:

    I think the FatBatt Fifty is a more accurate list. They update it too but I don't know how often.

  • kinesthe Says:

    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

  • freeskydiver Says:

    What settings did you used during the tests??

  • Laptors Says:

    Good articles=))))

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