Transforming a standard battery into a rechargeable version requires careful modifications and the right components. A lithium battery paired with a voltage regulator ensures a stable power output, ...

Our evaluation included extensive discharge tests to find long-lasting alkaline batteries -- including AA, AAA, C, D and 9-volt options. We also considered the cost per battery for each option to ...

Here's what you need to know about how frigid conditions affect car batteries, and what you can do to keep your vehicle ...

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources ...