Do Thing Plus boards know to not charge AA battery pack?

I have a couple Thing Plus boards with LiPo charging capability. When a USB-C is connected to the computer they can charge a LiPo. I have a AA battery holder with the same connector as the LiPo batteries. Does the Thing Plus know whether or not a LiPo battery is plugged in and will only charge LiPos? In other words if I am powering my board with Alkaline AAs is it safe to leave them connected while I connect the USB-C to upload new software?

Thanks.

The boards can’t tell what kind of battery is attached. You will need to either unplug the AA pack from the board or remove a battery from the pack while plugged into USB.