tom's Hardware on MSN4mon
iPhone 16 battery needs a good zapping to debond the adhesive — the process takes a minute and a half when using a 9V battery
Using battery clips attached to the 9V battery, the positive clamp is secured on the silver tab on the iPhone 16's battery, ...
Hackaday20y
How-to: ‘usb Battery’ V2
you’ll be able to charge your device faster while it is running and it’s much more efficient, which will give your 9 volt a longer battery life ... for the female usb connector, look down ...