Wyze Cam and Wyze Cam Pan don't have a battery, so they'll need to be plugged into an external power source. Each camera comes with a 110V power adapter and a 6-foot USB power cord that can be plugged into a wall outlet or power bank. A 10000mAh power bank will power Wyze Cam for about 16 hours, and a 20000mAh power bank will power Wyze Cam for about 33 hours.
Wyze Cam uses 5V 1A DC power through a micro USB port. Wyze Cam Pan uses 5V 2A DC power through a micro USB port. The adapter is rated for 100-240V input, so you can use it with any power source within this range. The power consumption is between 2-4 watts, depending on whether Night Vision is turned on.