Mobility

EV charging costs depend on time-of-use rates and efficiency, analysis says

An analysis said EV charging costs can be much lower than many drivers assume. It said the key drivers of running costs are time-of-use household electricity rates and EVs’ higher energy efficiency compared with gasoline cars, not fast-charging prices. Korea’s home charging rates vary sharply by time band, and charging off-peak can cut costs. The analysis also cited perception gaps, cheaper Level 2 charging and cases of free charging.

Telecommunications & Media

LightInk open-source smartwatch claims up to 400 days on a single charge

An open-source smartwatch project called LightInk has emerged, aiming to maximise battery life with an E-Ink display and a solar charging system. The project’s creator says it can run for up to 400 days on a single charge, even without solar charging. The watch limits features, using a low-resolution black-and-white screen and omitting most health and fitness sensors. It is not sold as a finished product and must be built by users using 3D printing, parts and self-installed software.