A quick calculation: To estimate a battery’s internal resistance, you can use a simple voltage-drop method when the ...

A research team affiliated with UNIST has demonstrated a simple yet effective method to extend the lifespan of all-solid-state batteries—by simply stretching film-shaped electrolytes to improve safety ...

Seattle-based EcoFlow has launched its DELTA Pro Ultra X whole-home battery system, offering homeowners installation and commissioning within one week. The system combines two portable home batteries, ...

Are you prepared for the future of AI, automation, and jobs? Are you prepared for the future of AI, automation, and jobs?

Lawyers for rule challengers had said the court should take the rare step of granting rehearing because of the “significance of the issues.” A federal appeals court has declined to revisit an ...

DENVER (KDVR) — Four people are displaced from their home after a fire involving an electric scooter battery in Arapahoe County on Tuesday. South Metro Fire Rescue and the Arapahoe County Sheriff’s ...

In an August 12, 2025, opinion, the U.S. Court of Appeals for the Second Circuit vacated an order from the Northern District that had denied preliminary injunctive relief to two California-owned ...

Demonstrators hold signs in support of refugees on the steps of the U.S. District Court of Western Washington in Seattle on Tuesday, Feb. 25. U.S. District Judge Jamal N. Whitehead issued a ...

Decathlon, the French sportswear and outdoor gear retailer, has launched a new portable Bluetooth speaker called the PS100. The device is available on JD.com for 199 yuan ($28) in China and sells ...

Learn how to create a reliable 12V battery backup circuit for routers, LED lights, or small electronics. This step-by-step tutorial is perfect for DIY electronics enthusiasts and beginners alike.

ZDNET experts put every product through rigorous testing and research to curate the best options for you. If you buy through our links, we may earn a commission. Learn Our Process 'ZDNET Recommends': ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...