About lithium battery function

Hello,
I have a question about lithium battery function for CM3.
I can see in the connector 1, there has a pin BAT_3V7_PLUS, BAT_3V7_LOSE and TS, Is that means the CM3 already support 3v7 lithium battery charge/supply electricity function? Or is it just the function of power supply?Or just charging function, no power supply function?

Looking forward to your reply, thank you.