Petzl has pedigree in the head torch market and that ... That’s split between the small unit up front and the battery pack at the rear. The HeadLamp 330 offers a well-balanced lighting performance. It ...

Oct. 24, 2024 — Lithium-sulfur batteries have never lived up to their potential as the next generation of renewable batteries for electric vehicles and other devices. But mechanical engineers ...

Lithium-ion (Li-ion) battery technology has historically been the power cell of choice, especially given that we’re always all looking to maximize our smartphone’s battery life. However ...

Rechargeable batteries, which can be used again and again through top-ups from the mains-connected charger, are an investment – the best will last for hundreds of hours of use. They have several ...

We used a Volkswagen Passat headlamp for the tests because this provides a precise beam pattern with good detail. A perfect score for Philips, which topped all five tests. Like its rivals here ...

Our mountaineering expert considers the epic, taking a look at high-profile cases and detailing how you can avoid being part ...

Looking for a smartphone that offers long battery life and fast charging speed? Here`s our thoughtfully curated list, after evaluating battery size, charging speed, gaming performance, and much more.