I am travelling for work at the moment and the first thing I do whenever I get to timeshare, Airbnb or hotel room is look for the power socket near the bedside table because I need to charge my Apple Watch and iPhone that night. Batteries right! Don’t get me started on my the ones in my i7 laptop.
So here is a good news story for those who work away from power sockets and anyone with a mobile phone:
New battery seems to offer it all: lithium-metal/lithium-air electrodes | Ars Technica