LinkIt BAT/USB switch

What for this BAT/USB switch? To prevent discharge of battery by disconnecting it from consumers? (so act as power off switch)?

If LinkIt works from battery (switch turned to BAT) and then I will connect the USB cable - will it charge the battery and still powering the core chips?

Will it charge the battery if battery connected and switch turned to USB?

Hi, the switch can act as an on/off switch when there’s battery power only.

When LinkIt ONE works from battery, If you connect to the USB, it will charge the battery, and you can program the board as well.

It wouldn’t charge the battery if you switch to USB.