How to: Go to Settings > Display on your Android phone. There, you'll find the option to switch between a light and dark theme and to have dark mode turn on automatically at a certain time of day. I ...

The first is the simplest and, arguably, the most effective: disconnect the battery entirely. Locate the battery under the ...

Cold weather exposes weak batteries fast. Here’s how to spot the warning signs—and replace it before winter leaves you stuck.

Learn how to make your car battery last longer with this expert advice from CR. These simple steps will catch any battery ...