I put the OnePlus 15R, and two other Androids, through some serious battery tests to prove just how much of a battery beast ...

My “unicorn” Volvo V90 plug-in hybrid wagon is almost four years old. Here’s how healthy its high-voltage battery is.

When your remote control stops working or your child's favorite toy no longer functions, you might wonder if the batteries are dead or the device is broken. Fortunately, there's a simple and effective ...

A car battery is a crucial component that plays a vital role in the operation of a vehicle. Its primary function is to provide electrical energy to start the engine and power various electrical ...

Learn what common battery tester errors mean, why they occur, and how to fix them to ensure accurate diagnostics and avoid ...

Battery life remains a critical factor for smartphone users, directly influencing how devices are evaluated in terms of usability and overall performance. To better understand how modern smartphones ...

A recent battery drain test compared the performance of 10 flagship smartphones, including the Galaxy S25 Edge, iPhone 16 Pro Max, Vivo X200 Pro, and others. This test provided valuable insights into ...

Generational, which specialises in EV battery health certification, is set to deploy its battery testing technology at 21 ...

The iPhone 17 is put through an intensive battery test designed to simulate heavy real-world use. The test pushes the device ...

How we test laptops at ZDNET in 2026 ...