I have written about this for some years already, but having data backup always helps. The China Insurance Research Institute (CIRI) investigated the battery pack part-to-whole ratio of 59 battery ...

Is your smartphone’s battery draining faster than it used to back when you first unboxed it? Batteries — including rechargeable ones like those used in smartphones — chemically age over time. In other ...

If you buy something from a Verge link, Vox Media may earn a commission. See our ethics statement. is a senior reviewer with over a decade of experience writing about consumer tech. She has a special ...

How much does it cost to replace a Tesla car battery these days, and can you get one for free?