One glaring issue accompanies 800V platform EVs: the majority of DC chargers in the world are 400V, meaning that there needs ...

A blast from the Elektor archives: this 1998 battery tester uses a simple LED display to reveal a battery’s true condition under load — even below 1 V.

A man has built a rechargeable battery pack big enough to power his whole home using just the batteries from discarded vapes. British engineer Chris Doel thinks it’s “absolutely insane” that people ...

Chris Doel wired the 2.5 kWh battery into his home with an inverter and ran all electrical components entirely off-grid for ...

In electrical and electronic engineering, capacitors are fundamental components. They appear across all manner of applications, including power supplies, analogue filters, timing circuits, and energy ...

At the end of last year, we reported that Americans can't get enough of hybrid cars, and that hasn't changed much for 2025. For instance, per GreenCars, sales jumped another 36% in the second quarter ...

It’s not cheap, but the Apple Watch Ultra 3 is worth Considering for its mighty battery alone. A good choice for outdoorsy Apple fans. Whereas the Apple Watch Ultra 2 offered very minimal upgrades two ...

Enphase Energy just launched a new off-grid system that lets homeowners power their homes without a utility connection – even for extended periods. The California-based Enphase says the off-grid setup ...

Abstract: Multifault diagnosis is of great significance for the safe operation of lithium-ion battery (LIB) systems. A combined model-based and data-driven multifault diagnosis method based on an ...

SteelSeries just released a refresh of its popular Arctis Nova 7 midrange gaming headset. The Nova 7 Gen 2 offers significantly improved battery life, with an increase of around 40 percent when ...

When you live in an area with limited or no cell service, Wi-Fi calling can be a lifesaver. It keeps you connected for calls and texts when your phone would otherwise be useless. However, some iPhone ...

When Apple Watch arrived in 2015, there was no way to send or receive data without an iPhone or wifi. Now these things can talk to space. It’s wild. Apple Watch Ultra 3 is the first version to include ...