Laptop battery life has improved dramatically over the past few years. Not long ago, it was nearly impossible for a Windows machine to last a full workday on a single charge. Today, however, thanks to far more efficient hardware, even slim and lightweight laptops can deliver all-day endurance without compromising performance. For years, manufacturers have made ambitious claims of 15–20 hours of use, and now those numbers are finally becoming reality in real-world usage.
Note: In this article, we’ve highlighted the top five laptops that stood out for their exceptional longevity in the last quarter (July–September 2025). This roundup is based only on models we’ve personally tested.
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How We Test Laptop Battery Life
Much of this progress comes from the latest processors by Intel, AMD, and Qualcomm. These chips now integrate dedicated NPUs (Neural Processing Units) alongside additional efficiency cores, allowing them to handle demanding tasks more intelligently. Many of these processors also feature lower TDPs, which means they not only run cooler but also consume less power, which is a key factor in extending battery life.
For consistency, we rely on the PCMark 10 Video Loop battery benchmark, which plays a test video file continuously until the battery drains completely. Before each test, laptops are configured to the “Balanced” power profile, with brightness set to 80%, sleep and battery-saving features disabled, and fans kept on “Auto” where possible. This setup ensures we measure endurance under fair, repeatable, and practical conditions that reflect real-world use.
With that groundwork set, let’s get into the details and look at the top five long-lasting laptops we tested in Q3 2025.
Lenovo IdeaPad Slim 5 14Q8X9
The Lenovo IdeaPad Slim 5 (Gen 9) recorded 14 hours and 25 minutes in our battery test with its 57Wh battery and Snapdragon X Plus chip. This shows how far ARM-based laptops have come in terms of efficiency. Even though the laptop uses a 14-inch 1200p IPS display (not OLED), its runtime proves that Windows on ARM hardware can now hold its own against pricier ultrabooks.
Our review highlighted a sturdy all-metal build, a surprisingly comfortable keyboard, and smooth day-to-day performance — all at under ₹70,000. Yes, Windows on ARM still has a few rough edges, and the IPS panel is only average, but the package here is about endurance and practicality. For students, office-goers, or anyone who needs a laptop that won’t give up before the end of the day, the Slim 5x Gen 9 is a strong, reliable pick.
Pros:
- Strong battery life for work
- Comfortable, backlit keyboard
- Sturdy all-metal build
- Smooth performance for the price
Cons:
- Windows on ARM still isn’t perfect
- Average IPS display
You can read our complete review here.
HP OmniBook X Flip 14
Clocking in at 14 hours and 24 minutes, the HP OmniBook X 14 proves how far Intel’s Core Ultra V-series chips have come in balancing performance with efficiency. Despite featuring a sharp 3K OLED touchscreen, the laptop manages exceptional endurance. Of course, dark mode users will find even more gains, as OLED panels naturally consume less power when rendering black backgrounds.
In daily use, the OmniBook X Flip impressed us with its lightweight, convertible form factor, excellent typing experience, and immersive OLED visuals. At close to ₹1.5 lakh, it isn’t cheap, but the premium build and versatility justify the spend. Sure, there’s weak audio and the absence of a fingerprint reader are nitpicks, but not actual deal-breakers. Overall, this is a well-rounded ultrabook that feels ready for professionals and creators who want both flair and stamina.
Pros:
- Smooth performance
- Comfortable keyboard
- Stunning OLED display
Cons:
- Weak audio
- Windows still isn’t touch-friendly
You can read our complete review here.
MSI Prestige 16 AI Evo B2HMG
With 14 hours and 13 minutes of battery life, the MSI Prestige 16 AI Evo is the clearest example of how battery capacity matters as much as efficiency. Armed with Intel’s Core Ultra 9 285H (an H-series chip that typically drains batteries fast), this laptop still delivers marathon runtimes thanks to its near-maxed 99.9Wh battery. It outpaces several slim ultrabooks despite packing more raw horsepower.
On the usability front, the Prestige balances power and portability well. Its 16-inch QHD+ OLED panel is a treat for creative workflows, and the wide port selection (including dual Thunderbolt 4 and an SD card reader) makes it flexible for professionals. Some quirks remain, like rear-facing ports and a 60Hz refresh rate, but these are minor trade-offs. If the goal is uncompromised performance without constantly hugging a wall socket, the Prestige 16 AI Evo stands tall.
Pros:
- Excellent performance from Intel Core Ultra 9 285H
- Impressive battery life with smart efficiency tuning
- Sharp 16-inch QHD+ OLED display
- Versatile port selection
Cons:
- Rear ports aren’t convenient
- Keyboard feedback could be better
- 60Hz refresh rate only
You can read our complete review here.
ASUS ZenBook 14 UM3406KA
ASUS’s ZenBook 14 OLED lasted 13 hours and 7 minutes in our test. With a 75Wh battery paired to AMD’s Ryzen AI 5 340 chip, it shows how well AMD’s new silicon handles day-to-day efficiency. Additionally, the 14-inch 3K 120Hz OLED panel doesn’t drag things down either, making this one of the better endurance scores we’ve seen from a laptop that doesn’t compromise on visuals.
During our review, we loved its lightweight Jade Black design, gorgeous OLED panel, and smooth performance in productivity tasks. While its integrated GPU isn’t strong enough for heavy graphics work, the laptop’s value lies in being an everyday workhorse that still feels premium. Add in a decent port selection, and you have a laptop that balances style, efficiency, and stamina in equal measure.
Pros:
- Premium all-metal Jade Black build
- Gorgeous 3K 120Hz OLED display
- Strong Ryzen AI 5 CPU performance
- Good port selection
Cons:
- Weaker integrated GPU
- RAM is non-upgradeable
You can read our complete review here.
HP EliteBook 8 G1i
The HP EliteBook 8 G1i delivered 11 hours and 10 minutes in our test. That may not sound as impressive as the 14-hour club above, but considering it runs Intel’s Core Ultra 7 268V with a 62Wh battery, the result is still respectable. For professionals who need security, polish, and endurance in one machine, it’s a dependable business companion.
Our review praised its lightweight build, excellent keyboard and touchpad, and AI-driven business features. The 1200p IPS display isn’t the sharpest at this price point, and it’s certainly not the best choice for creative workloads, but the EliteBook excels in what it’s designed for: a sleek, secure laptop that can handle a full day’s work without hiccups. It may be on the pricier side, but for business users, it’s money well spent.
Pros:
- Sleek, lightweight premium build
- Touchscreen with privacy features
- Smooth performance with on-device AI tools
- Excellent keyboard, touchpad, and webcam
Cons:
- Expensive
- 1200p display only
- Not ideal for heavy creative workloads
You can read our complete review here.
