21
Lithium-Ion Batteries Have Gone Too Far
(www.theatlantic.com)
This is a most excellent place for technology news and articles.
I want to brag that my headlamp has the best of two worlds.
It has an 18650-cell that recharges through a USB-c port. I have a few cells ready to go in case I don't care too wait for it to charge.
Problem solved.