How interesting, I have two #batteries on my #Fairphone. I'm pretty sure I switched one out at 2 or 3%. But when I just switch it back in, it said 12%???

After like 6 hours of sitting out? Is this possible?

#battery #physics #chemestry

Why does there seem to be some difficulty in the development of a 'mature' #battery sector?... there may be particular reasons for the difficulties faced by #BritishVolt & others but Robin Harding (FT) suggests some structural economic issues under recognised by #investors & #entrepreneurs:

scarce inputs
large scale capital requirement
It business-to-business with no real brand element

the analogue is the #chemestry sector not #manufacturing, hence the miss-steps if this isn't appreciated!