Powerbank

[Nigzy]

Hi, is there such a thing as a power bank to charge camera batteries when outdoors.

 

[Clovishound]

It depends on the camera. Most, if not all, Nikon Z cameras support charging through USB connection, as do some DSLRs. You should be able to use a standard cell phone backup battery and the appropriate connector cable. Check your model's manual to see if you can charge via USB connection.