Is battery charging? MKR WIFI 1010 with MKR IoT Carrier - OPLA IoT Kit

I do have OPLA IoT Kit I inserted 18650 battery from my old laptop and it works fine. I can disconnect from USB and is running overnight.
My question is when I have connected via USB does it charge battery ? or I need to charge separately?

Yes the battery charges when plugged into USB.

thanks for your reply, I guess I need to solve my issue now with turning the display off

any idea if it could be possible to Monitor the Battery Level - Voltage? so it will send be signal when level below a certain threshold?