Eighteen-hour battery life is no longer exceptional.
For years, the promise of a laptop that could outlast a full waking day belonged almost exclusively to Apple's ecosystem or to those willing to pay a premium for the privilege. In 2025, that boundary dissolved quietly but decisively — Windows machines powered by new silicon from Qualcomm and Intel began crossing eighteen hours of battery life, with an Asus ultraportable edging past Apple's own flagship by a matter of minutes. What the numbers reveal is less a product story than a structural shift: efficiency, once a competitive moat, has become a shared standard, and the long-held assumption that endurance costs extra is no longer reliable.
- The benchmark that once defined excellence — ten hours on a charge — has become almost unremarkable, with over a dozen 2025 laptops surpassing fourteen hours in standardized testing.
- Apple's reign at the top of battery rankings, built on years of tight hardware-software integration, was broken by an Asus Windows ultraportable that squeezed out eighteen hours and twenty minutes — twenty minutes more than the MacBook Pro M5.
- Qualcomm's Snapdragon X chips and Intel's Core Ultra processors are now genuine efficiency contenders, with the LG Gram 17 outlasting a MacBook Air M4 despite carrying a larger screen and a lower price.
- The democratization of battery life is perhaps the sharpest disruption: the Lenovo IdeaPad Slim 3x now sells for around $500 and delivers nearly seventeen hours of runtime, collapsing the premium once attached to all-day portability.
- With Intel's Panther Lake chips expected at CES 2026, the efficiency race shows no sign of plateauing — eighteen-hour battery life is transitioning from exceptional achievement to baseline expectation.
After testing more than a hundred laptops through 2025, Tom's Guide reached a conclusion that would have seemed improbable a decade ago: genuine all-day battery life is no longer a luxury. Ten hours on a charge once felt like an achievement. Today, that threshold barely earns a mention.
The year's standout result came from the Asus Zenbook A14, a Windows ultraportable that lasted eighteen hours and twenty minutes — edging past Apple's MacBook Pro M5, which held at eighteen hours flat. That the reigning benchmark-setter was beaten by a Windows machine, on a fourteen-inch OLED display, marks a real turning point. Apple's advantage, built on years of designing its own silicon, has not disappeared, but it is no longer a ceiling others cannot reach.
The broader story is one of competition reshaping an entire market. Qualcomm's Snapdragon X chips placed multiple Windows laptops in the top tier of battery rankings. Intel, long associated with power-hungry processors, surprised reviewers with the LG Gram 17 — a machine running a Core Ultra 7 chip that outlasted a MacBook Air M4 by nearly ten minutes while offering a larger screen at a lower weight.
Price has shifted too. The Lenovo IdeaPad Slim 3x, now available for around $500, delivered nearly seventeen hours of battery life in testing. That kind of value — genuine portability without a premium — would have been difficult to find in any previous year.
The reviewer, drawing on more than a decade of covering the category, reads these results as a structural inflection point. Intel's next-generation Panther Lake chips, due at CES 2026, may push efficiency further still. For now, the market has already changed: eighteen-hour battery life is becoming not a distinction, but an expectation.
After running more than a hundred laptops through their testing gauntlet over the course of 2025, the team at Tom's Guide has arrived at a striking conclusion: the age of the all-day laptop is no longer a luxury reserved for the wealthy or the Apple faithful. A decade ago, squeezing ten hours from a single charge felt like a genuine achievement. Today, that threshold is almost quaint.
The shift has been dramatic enough to reshape the entire market. When the testing lab ran its battery protocols on the year's machines, more than a dozen crossed the fourteen-hour mark. Several pushed past eighteen. The longest-lasting model managed eighteen hours and twenty minutes of continuous use—a figure that would have seemed like science fiction not so long ago. What's changed is not just the numbers but the distribution of that efficiency across different manufacturers and chip architectures.
For years, Apple's MacBooks held an almost unchallenged position at the top of the battery-life rankings. The company's vertical integration—designing both the hardware and the silicon—gave it an advantage that competitors struggled to match. That advantage persists, but it is no longer absolute. The MacBook Pro M5, Apple's newest flagship, lasted eighteen hours flat in testing, a respectable figure that would have dominated the conversation just a few years ago. Yet it was beaten by the Asus Zenbook A14, a Windows ultraportable that weighs less than a MacBook Air and somehow managed to extract an extra twenty minutes of runtime from its battery. The Zenbook's fourteen-inch OLED display adds visual polish to that efficiency, though the reviewer noted the machine's performance-per-dollar ratio left something to be desired.
What makes this year's results particularly significant is the emergence of credible alternatives from other chipmakers. Qualcomm's Snapdragon X processors, which began shipping in laptops last year, have proven remarkably efficient in practice. Several Windows machines powered by these chips landed in the top tier of the battery rankings. Intel, long criticized for prioritizing raw performance over power efficiency, also made an unexpected showing. The 2025 LG Gram 17, running an Intel Core Ultra 7 256V processor, lasted fifteen hours and thirty-one minutes—nearly ten minutes longer than a fifteen-inch MacBook Air M4, despite weighing slightly less and offering a larger display. For a company that has typically seen its laptops drain batteries in eight to twelve hours, this represents a meaningful inflection point.
Price has also shifted in favor of the consumer. The Lenovo IdeaPad Slim 3x, which launched at $749, now regularly sells for $500 or less. In testing, it delivered almost seventeen hours of battery life while weighing under four pounds. At that price point, it represents the kind of value proposition that would have been unthinkable in previous years—genuine all-day portability without the premium price tag.
The reviewer, who has been covering laptops for more than a decade, frames these improvements as a genuine inflection point in the industry. The competition between Apple, Qualcomm, and Intel has begun to drive real gains in efficiency across the board. Intel's next-generation Panther Lake chips, expected to debut at CES 2026, could accelerate that trend further. For now, though, the takeaway is clear: the laptop market has fundamentally changed. Eighteen-hour battery life is no longer exceptional. It is becoming the baseline expectation.
Citações Notáveis
I can remember when getting 10 hours of use out of a full battery was a real luxury. But in 2025 we reviewed over 100 laptops, and over a dozen lasted 14+ hours on a full charge.— Tom's Guide reviewer
The fact that an Intel-powered LG laptop delivered some of the best battery life of any laptop we tested in 2025 seems like a good sign for Intel's future competitiveness.— Tom's Guide reviewer
A Conversa do Hearth Outra perspectiva sobre a história
Why does battery life matter so much more now than it did ten years ago?
Because the laptop became the primary computer. A decade ago, you could still rely on being near a desk or a power outlet. Now people work from coffee shops, trains, airports—places where a charger isn't guaranteed. Eighteen hours means you can work a full day and into the evening without anxiety.
But the MacBook Pro M5 lasted eighteen hours and it's still not the longest-lasting laptop you tested. How is that possible?
The Asus Zenbook A14 is lighter and thinner, which means less weight to power. It's a trade-off—the MacBook is arguably more powerful, but the Asus simply needed less energy to do the same work. Different design philosophies, same outcome.
You mention that Intel's showing with the LG Gram 17 is surprising. Why has Intel struggled with battery life for so long?
Intel's architecture was built for performance first. They optimized for speed, for handling heavy workloads. Efficiency was secondary. Qualcomm and Apple designed from the ground up assuming the chip would be in a portable device with a finite battery. That's a fundamental difference in philosophy.
The Lenovo IdeaPad Slim 3x is $500 and lasts seventeen hours. Why would anyone buy a MacBook anymore?
The MacBook still has advantages—the ecosystem, the build quality, the display technology. But you're right that the value proposition has shifted. For someone who just needs a reliable, portable machine that lasts all day, the Lenovo is hard to argue against.
What does this mean for 2026?
Intel's new chips could change everything. If they can match Qualcomm's efficiency while keeping their performance advantage, we could see a real three-way race. Right now, the market is consolidating around the idea that all-day battery life is table stakes. The next frontier is probably performance-per-watt.