Tyler Lacoma has spent more than 10 years testing tech and studying the latest web tool to help keep readers current. He's here for you when you need a how-to guide, explainer, review, or list of the ...

PCWorld explains how to calibrate smartphone and laptop batteries when they display inaccurate percentage readings or cause unexpected shutdowns. Battery calibration involves fully charging to 100%, ...

Jumping percentage displays, a suddenly empty smartphone, or unexpected switch-offs despite a remaining residual charge are typical everyday battery problems. These issues are often not caused by a ...