W hen Asus announced the Asus ROG Ally X this summer, the thing that caught our eye was the handheld's 80Wh battery capacity.

When you're looking for a flagship phone with a long battery life, is one phone maker better than the others? To find out, we ...

Best Solar Batteries of 2024 What is a Solar Battery? A solar battery is an energy storage device designed specifically to ...

Tesla is still struggling with the dry-cathode coating process, but it plans big, with four variants of the dry-cathode 4680 ...

Tesla is developing four new 4680-type battery designs, which will be launched by 2026 to power the Cybertruck and the ...