Some of the newest Android phones can last for days on a single charge, even without adjusting settings to extend battery life. Cutting-edge technologies like silicon-carbon power cells continue ...

On Wednesday afternoon, I noticed that my phone was no longer sitting flush in its case. It took me a few minutes to realize that this was a big, honking sign of danger. The battery in my smartphone ...

That old smartphone buried in your junk drawer might be doing more than collecting dust. If its back panel is bulging, its screen is lifting away from the frame, or the case feels unusually warm, the ...