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BGS5T RTC backup ? (old aplication with TC65T BATT+ line connect to external battery) | Thales IoT Developer Community

June 30, 2015 - 3:42pm, 1878 views

Hello,

Maybe someone can help me

My old aplication uses the TC65T and an external battery connected to the BATT+ line to power up the RTC backup, and mantain the RTC when TC65T is power down.

Now I need to upgrade my aplication to the new BGS5T terminal!

How can I keep the Real Time Clock acurate when the main power supply fails to provied power to the BGS5T ?

thanks