We test and review what we think is the best car battery tester, plus other options at different price points at AutoGuide.com.

If you want to help preserve some battery on iOS 18, the best thing to do is simply avoid widgets on your lock screen (and home screen).

Rising energy storage demand is a catalyst for battery stocks, as is innovation in transportation.

Wondering what's killing your smartphone's battery life? Let's fix that! These are the four reasons why your battery is draining so fast.