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%, ...

A laptop is nothing without its battery because this piece of kit allows the device to have power even when not connected directly to a power source. However, laptop batteries do not stay healthy ...

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 ...