The eVscope’s battery lasts up to 10 hours. You can also use your telescope while its battery is charging. The charging time can vary from 6.5 hours (OFF mode) to 8 hours (while operating).
To charge the battery, you have to use a USB-C charger (you'll hear a click when you'll connect it).
The LED will be blue and it will go from six flashes to none. Flashes decrease as the battery gets more charged.
In the end, the LED will stay blue with no flash. That's how you know your battery is fully charged. Also, the app will show a full battery icon (eVscope section).