The battery indicator in your dashboard, much like the check engine light, is vague. It may be nothing serious, or it could ...
Monitoring and managing Li-ion batteries is key for extending runtime and minimizing risks like thermal runaway. Test your ...
I took EcoFlow’s latest portable power station, the Delta 3 Plus, into the wild (literally). I brought it on a five-day ...
NFPA warns of rising lithium-ion battery fire risks during Fire Prevention Week, offering tips for safe use, charging, and ...
Why your phone charges quickly one day but slowly the next, or why electric cars still take an hour or more to charge, is a ...
There are six power banks on my desk right now. On the shelves behind me are a dozen (two dozen?) more. Over the past three years, I’ve tested more than 55 portable battery packs for Engadget — and ...