LG Gram 15

This shockingly light 15-inch laptop (it's about 2.5 pounds) also has amazing battery life, jumping to the top of our current list at 13 hours and 58 minutes (838 total minutes). 

HP Spectre x360 13

798 minutes, or 13 hours 18 minutes 

Asus NovaGo TP370QL

The first Qualcomm Snapdragon-powered laptop we've tested falls a bit short on performance and features, but kills it in battery life at 13 hours, 12 minutes (792 minutes). 

Lenovo ThinkPad X1 Carbon

This 2018 version of the X1 Carbon laptop has a WQHD-resolution 14-inch display (2,560 by 1,440 pixels), with 100 percent Adobe RGB color gamut, brightness up to 500 nits and support for Dolby Vision HDR for greater brightness, contrast and color palette, all while bringing in big battery life numbers.  Score: 13:07, or 787 minutes.

LG Gram 14

The LG Gram 14 2-in-1 laptop is an ultralight pen-enabled convertible with extraordinary battery life for its class, plus it's really, really light (just 2.5 pounds). The Gram ran for 12 hours 35 minutes, or 755 minutes.

Samsung Notebook 9 Pro

It's not the most exciting design out there, but the 2019 Samsung Notebook 9 Pro is a slim, lightweight two-in-one with extra-long battery life, plus strong performance for its size. The Notebook 9 Pro ran for 12 hours 30 minutes, or 750 minutes.

Lenovo Yoga C930

Excellent performance along with a stylish and functional design make the Lenovo Yoga C930 simply one of the best two-in-one laptops available, and its 12-plus hours of battery life is icing on the cake. Score: 12:25, or 745 minutes.

Dell XPS 13 (2018)

The XPS 13 is one of our top choices for a premium Windows ultraportable laptop. The new 2019 version fixes a handful of problems, like a poorly placed webcam, but the 2018 version still beats it out on battery life. Don't worry, the 2019 version is a bit further down on this list. Score: 12:18, or 738 minutes.

LG Gram 17

732 minutes, or 12 hours 12 minutes 

Acer Aspire E15-57G6

Acer's very low-cost 15-inch includes a DVD drive (a rarity these days), an Nvidia MX150 GPU and a battery that runs for a decent 11 hours, 58 minutes (718 minutes). 

Acer Chromebook Spin 13

This folding-screen Chromebook ran for 11:36, or 696 minutes.

Apple MacBook Pro (15-inch, 2018)

The latest MacBook Pro is the highest-ranking MacBook on the list, with 11:29, or 689 minutes.

Microsoft Surface Laptop 2

A great all-around slim laptop with premium-level battery life. Score: 11:11, or 671 minutes.

Apple MacBook Air (13-inch, 2018)

Apple finally revamped the classic MacBook Air. The new version ran for 10:46, or 646 minutes.

Asus Zenbook UX331U

This great superslim laptop combines some basic Nvidia graphics with 10 hours, 45 minutes (645 minutes) of battery life. 

HP Spectre Folio Convertible 13

Thus unusual leather-covered laptop became a quick favorite for us, with a great design and battery life of 10:45, or 645 minutes.

HP Chromebook x2

A Surface-like two-in-one Chromebook that converts into a tablet. It ran for 10:40, or 640 minutes.

Asus Zenbook US461U

Another slim Asus laptop, this time with a hybrid hinge and battery life of 10 hours, 29 minutes (629 minutes).

Lenovo Flex 5

Lenovo's Flex line is one of our favorite value brands. This is an excellent budget hybrid with impressive battery life at 10 hours and 23 minutes (623 minutes). 

Dell Latitude 7390 2-in-1

This basic hybrid from Dell has especially good speakers for movie-watching, and a pretty decent 10 hours, 22 minutes (622 minutes) of battery life. Newer models have eighth-gen Intel processors, which may even add a few minutes. 

HP Elitebook x360 1030 G3

An excellent score from a two-in-one business laptop: 611 minutes, or 10 hours 11 minutes 

Microsoft Surface Pro 6

The latest Surface Pro gets new CPUs but there's not a ton of room for a battery in the slim tablet. It ran for 10:06, or 606 minutes.

Huawei MateBook X Pro (2019)

The latest version of the MateBook X Pro ran for 9 hours 31 minutes, or 571 minutes.

Acer Swift 7

Amazingly thin, the Swift 7 still managed to run for an impressive 9:21, or 561 minutes. 

Dell XPS 13

This is a faster Core i7 version of the XPS 13, which, while still impressive, ran about three hours shorter than the Core i5 version at 9:08, or 548 minutes.

Huawei MateBook X Pro (2018)

This major global brand is trying to break into the US laptop market, and its flagship ran for 9:05, or 545 minutes. 

HP Elitebook 1040 G4

One of our favorite business laptops, this slim two-in-one ran for 8:56, or 536 minutes.

Microsoft Surface Pro LTE

A last-gen Surface, and the first one with a built-in LTE antenna. It ran for 8:47, or 527 minutes.

Lenovo Flex 11

A great budget Lenovo Yoga alternative, and a long-lasting laptops at 525 minutes, or 8 hours 45 minutes.

Dell XPS 13 (2019)

Last year's XPS 13 was a top-10 battery life performer. The newest version is better in many ways but ran for less time at 509 minutes, or 8 hours 29 minutes 

Acer Spin 5

A decent middle-of-the-road two-in-one, this ran for 507 minutes, or 8 hours 27 minutes. 

Asus ZenBook S UX391U

506 minutes, or 8 hours and 26 minutes from this slick ultraportable. 

HP ZBook Studio x360

502 minutes or 8 hours 22 minutes is an impressive score for a workstation-class two-in-one like this. 

Lenovo Ideapad 730S

When otherwise average laptops top 8-plus hours in our battery tests, you know battery life has come a long way in the past few years. The score here was 488 minutes, or 8 hours 8 minutes. 

Huawei MateBook 13

A slightly older version of this well-designed laptop ran for 437 minutes, or 7 hours 17 minutes.

Top laptop battery life performers

This chart lists the laptops and battery life scores of the preceeding 35 systems. We'll update this feature regularly as we test and review new laptops.

Read more CNET laptop reviews here.