Our mouse battery on our new iMac (Jan. 2020) is empty. It says: Connect to USB to recharge. How do we do that?
- MrWakeupLv 61 month ago
When it's time to charge your device's battery, connect a Lightning to USB cable to its Lightning port, then connect the other end of the cable to your Mac or a USB power adapter.
For the fastest battery charging performance, be sure your device is switched on when connecting the Lightning to USB cable.
The Lightning port on Mouse should be on the underside of the device, beneath the text and markings.Source(s): https://support.apple.com/en-us/HT205160