I’m afraid the Xadow - GSM+BLE reward does not include a battery in it.
But you can still power through the pinout 3(Vcc) and pinout 6(GND) with external power sources that have a voltage of 3.3 ~ 4.2V(no SIM)/3.5 ~ 4.2V(with SIM)
The devices has to be powered first when updating the firmware (see the first step of the driver installation)
