'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 ...

A proper car battery is rechargeable, making it a much better solution than 300 double-A batteries. It’d be interesting to see the experiment performed again with rechargeable double-A batteries ...

Lithium-air batteries have the potential to outstrip conventional lithium-ion batteries by storing significantly more energy at the same weight. However, their high-performance values have thus far ...