TL;DR: The 2026 Dell XPS 14 with Intel Core Ultra 7 355 offers exceptional battery life, lasting over 43 hours during web browsing using a 1 Hz refresh rate mode. It outperforms the MacBook Air 15 in ...

I've been covering Android and other mobile technology for close to ten years now, with a specific interest in phone accessories, e-readers, and what makes each individual phone different from another ...

As part of the country’s strategic program to strengthen the stability of the national grid, Cuba has begun load testing of the first unit of a battery energy storage system (BESS) at the El Cotorro ...

Battery life hasn’t exactly been a strong point for foldables so far, but that might be starting to shift. A recent comparison test gives a clearer idea of where things stand right now. By the end of ...

Donut Lab released a new test showing its solid-state EV battery retained 97.7% charge after 10 days, aiming to prove critics wrong who claimed it wasn’t a real battery. Donut Lab released a new test ...

There was speculation that Donut Lab’s battery was able to discharge energy so quickly because it was a supercapacitor in disguise. So the startup set out to disprove that claim. There was speculation ...

Donut Lab’s solid-state, lithium-free battery has undergone a second round of independent testing, revealing both promising results and critical gaps. Conducted by Finland’s VTT research center, the ...

Donut Lab has released a second set of independent test results for its controversial solid-state battery — this time proving the cell can discharge at extreme temperatures up to 100°C and actually ...

Solid-state batteries spark a global EV arms race as automakers and startups compete to unlock ultra-fast charging and the holy grail of electric mobility. Solid-state batteries have entered a global ...

The Finnish startup’s pack can charge from 0 to 80 percent in under 5 minutes, according to its first independent test. The Finnish startup’s pack can charge from 0 to 80 percent in under 5 minutes, ...

2025 brought big changes to the smartphone battery department, with manufacturers adding silicon-carbon batteries that massively increase capacity without increasing the size of the battery or, by ...

It is common knowledge that communicating over WiFi is more efficient than using the 5G cellular network, but by how much exactly? That’s exactly what PhoneBuff set out to measure in its latest ...