Thanks for your quickly reply.
The problem we face is that the discharge current of RTC is to high(330uA). I have explored the relayted topics on this forum. Several mention that the normal RTC current consumption is 2uA. Most of these are AGX, not AGXi. Only one topic mentions AGXi draws current about 0.4mA which seems have the same proble with us AGX Industrial not booting at negative temperatures - Jetson & Embedded Systems / Jetson AGX Xavier - NVIDIA Developer Forums .
Have you futher details about rtc current consumption of AGXi? What setting can we make to reduce the discharge current?
Thanks!