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Everyone can agree that longer battery life in a laptop is better, but many parts of a laptop stand in contrast to a long runtime. High-powered CPUs and graphics, for example, drain the battery faster than more efficient and less powerful components. Larger, brighter and higher-resolution screens consume more battery resources than smaller, dimmer displays that have fewer pixels to power. The type of display matters too. While an OLED panel offers a superior picture than that of an LCD screen, it tends to drain the battery faster. The size of the laptop can also play a role, with compact and thin ultraportables usually relying on smaller batteries than larger laptops that have room for a bigger, longer-lasting battery. If you're shopping for a long-lasting laptop on a budget, keep in mind that many of these models see major discounts during Cyber Monday laptop sales.

Some users depend on a laptop's battery more than others—but how long a notebook endures unplugged is a measurement no shopper should ignore. Even powerful workstations and gaming laptops, once lucky to last an hour or two away from a wall socket, can now get you through close to a workday with ordinary tasks. (Ultraportables run anywhere from 12 to 20 hours or more.) At PC Labs, we've been testing laptops for decades, running rigorous, repeatable tests on each of the 100-plus machines we review yearly. PCMag's expert laptop reviewers run a standardized battery-rundown test, a host of CPU and graphics performance benchmarks, and screen-quality trials on each machine. The aim? To craft authoritative recommendations and insights before you buy. The Acer Aspire 3 is the current best battery-life laptop for the lowest price, and the Snapdragon X-based Lenovo ThinkPad T14s Gen 6 the longest-running mainstream laptop, but keep reading for other excellent, long-lasting choices, a detailed spec comparison, and key buying advice.

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Battery life is one of the most important aspects to consider when purchasing a laptop; it can be annoying to continually look for a power outlet to charge your device, especially when you're out and about. Thankfully, many laptops have fantastic battery life as CPUs, SoCs, and other components become increasingly more power-efficient. Battery life isn't the only thing you need to consider when buying a laptop, though, as a poor user experience or sluggish performance can still make a laptop with incredible battery life near unusable, so it's important to weigh each model's pros and cons. Also, remember that the configuration can greatly affect a laptop's battery life.
If you don't need the raw processing power of a workstation but still want something premium for everyday, general productivity tasks, check out the Microsoft Surface Laptop 7th Edition 15 (2024). This 2024 model is a huge departure from its predecessors, as it now sports an ARM SoC, the Qualcomm Snapdragon X Elite. This chip performs better and is incredibly efficient, resulting in a whopping 17-hour battery life in light uses. Other improvements include a significantly brighter 120Hz display, a haptic touchpad, a wider port selection, Wi-Fi 7 support, and a 1080p webcam.
Our best mid-range pick is the Acer Swift Go 14 (2024), a 14-inch Windows ultraportable. Though not as premium-feeling as the models we recommend above, this compact ultraportable feels very well built for the price. It has a spacious keyboard, a responsive touchpad, Wi-Fi 6E, a 1080p webcam, and a wide port selection that includes two Thunderbolt 4s and an HDMI. The power button doubles as a fingerprint sensor, so you can log in quickly and get to work. Battery life is excellent at around 11 hours of light use, and you can charge the laptop via USB-C, eliminating the need to carry around a proprietary charger.
The best cheap laptop with long battery life we've tested is the Lenovo IdeaPad Slim 3i Chromebook 14 (2023). It's a great option for younger students or anyone needing a simple device for web browsing and video playback. You can often find the Core i3 configuration&mdash;paired with an FHD display, 8GB of RAM, and 128GB of storage&mdash;on sale for around $400 to $500 USD on Lenovo's website. Cheaper configurations exist; however, we don't recommend them unless you have an extremely light workload and don't mind compromising on the display quality.