Dell XPS 16 Hits Remarkable 27‑Hour Web Battery Life

Dell’s new XPS 16 showed up at CES as one of the more interesting ultraportables thanks to an LG Display panel that scales from 1 to 120Hz. Combined with Intel’s latest Panther Lake Core Ultra silicon, that display appears to be part of a package that dramatically improves battery life under light workloads.

Notebookcheck recently tested a configuration of the XPS 16 equipped with the variable 1–120Hz LG screen and an Intel Core Ultra 325. The site reports the laptop idled at just 1.5 watts and managed nearly 27 hours in its standard Wi‑Fi web browsing test, despite packing a 70Wh battery. That result edges past many previous leaders in efficiency and points to meaningful gains from pairing a low‑refresh minimum with a power‑sipping chipset.

Some of the savings come from the panel itself: dropping to 1Hz for static content can cut the display’s energy draw, which matters a lot when you’re mostly reading or browsing. The Panther Lake processor also plays a role, delivering modern single‑threaded and background efficiency improvements Intel has been pushing in its Core Ultra line.

It’s worth noting that Notebookcheck’s tests are one set of real‑world measurements and results will vary with brightness, workload, and configuration. Gaming, video editing, or sustained high‑refresh tasks will draw far more power than light web use. Still, seeing a mainstream Windows laptop last through an entire day and beyond on a 70Wh pack is notable.

For anyone who prioritizes all‑day battery life in a traditional clamshell laptop, the XPS 16’s combo of a 1–120Hz LG panel and Panther Lake silicon looks promising. If Dell ships similarly optimized SKUs to market, we could be looking at a new sweet spot for productivity machines that don’t force you to compromise on display quality.