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 ...

We test dozens of laptops every year here at ZDNET, and our testing process employs a dual approach. On one hand, we run a series of benchmarking programs to gather important system data and metrics.

Laptops quietly monitor their own health, but most people never tap into the tools that can warn of trouble long before a crash or data loss. Built-in hardware diagnostics sit below the operating ...