@tubetime that unpopulated space on the motherboard with a circle that says «batt», what’s that for?
@oven alternative way to assemble the board using an RTC chip that has no built in battery. the chip footprint is under the socket where you can't see it. the external battery socket goes on the footprint you noticed.
Gregory's Server
@oven alternative way to assemble the board using an RTC chip that has no built in battery. the chip footprint is under the socket where you can't see it. the external battery socket goes on the footprint you noticed.