RTC Reset if Power Button is pressed for 10 seconds

RTC Reset if Power Button is pressed for 10 seconds

Old models of SKY have Real Time Coin battery as a back-up battery as shown below.

Ways to charge the battery vary according to the main board version.

For V1.1: Charged through CPU, and RTC is reset if the power button is pressed for 10 sec.

For V1.2: Charged through the main battery and follows the main battery level.

Fully charged back-up battery can keep the date information and GPS configurations for 5 to 10 minutes without the main battery.