Dead Rail” or “Power on Board” — no matter what you call it, the concept is the same: a model locomotive that carries its own ...

Volkswagen recalled 311 ID.4 units over a battery defect that could cause a fire, advising owners to park outside to prevent ...

The VX2 Pro is a two-slot battery charger that can take a wide variety of cell types and sizes. You can pop in AA, AAA, C, D, 18650, 21700, and more, and the unit will automatically detect the battery ...

An Oura user reported their ring smoking and overheating. Smart rings have had some bad press recently. Earlier this year, a Samsung Galaxy Ring began swelling on a user's finger as he was about to ...

Amazon Basics sells all kinds of batteries, but it doesn't make them. That's because having other companies produce batteries ...

Good battery care use to involve letting the battery discharge completely every so often. With modern battery technology, ...

What happens to a battery charger that balks at…umm…y’know…reliably charging batteries? It goes under the teardown knife, of ...

Avoid using rechargeable batteries in smoke alarms, wall clocks, and remotes. Their lower voltage and self-discharge rates ...

A quick calculation: To estimate a battery’s internal resistance, you can use a simple voltage-drop method when the open-circuit voltage, loaded voltage, and current draw are known. For example, if a ...

YouTube channel HTX Studio conducted a massive smartphone battery charging experiment that involved buying 40 phones and spending two years conducting battery charging experiments using fast and slow ...

HTX Studio this week shared the results from a six-month battery test that compared how fast charging and slow charging can affect battery life over time. Using six iPhone 12 models, the channel set ...