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 ...

Testing a high-voltage battery? Building a battery-powered IoT device? Check out this installment of Products of the Week for the latest battery test systems to hit the market. The world is working to ...

Or, more importantly, do you know “how” your batteries are — that is, what’s their condition and can they perform their function if called upon to do so? As with most things associated with the ...

MyBroadband tested rechargeable lithium AA batteries, and found them to be good value when the consistent output voltage and ...

A Tesla battery researcher showed updated test results pointing to batteries lasting over 15,000 cycles or the equivalent of over 2 million miles (3.5 million km) in an electric car. Last year, we ...

In this video, we test out NIO's Power Swap Station, a revolutionary system that allows EV drivers to swap out their empty ...