When the battery charge level drops below 18%, the device displays a notice to connect the device to power. The user should charge the battery using one of the charging accessories.
When the battery charge drops below 10%, the device displays a notice to connect the device to power. The user must charge the battery using one of the charging accessories.
When the battery charge drops below 4%, the device turns off. The user must charge the battery using one of the charging accessories.
