This power bank is a beast of POWER. I was able to charge multiple devices at a time. I even charged my Galaxy S21 cellphone on fast charge 4 times, 6 GoPro Camera batteries, and a Ring camera all on a single bank charge.
Weight: Some comments were given that it is too heavy. I have different power banks of much lesser capacity. This bank is in the same weight class as the others. I had no problem carrying it around in a backpack for an all day outing. And remember, it can recharge with solar power. At each rest point, I took it out to trickle recharge (slow charge); remember no direct sunlight due to heat damage.
Right now I am giving a 4 star as I have not fully tested the solar recharge capabilities, though it does signal that inside light does work.
Con: The camera has a few built in USB cable types. The built in USB-C cable DOES NOT WORK! The cable will not make full contact with any of my USB-C devices: phone-failed, tablet-failed, etc. The built in USB-C port works perfectly with my USB-C cables. All my cables fit perfectly into the device, the built-in USB-C cable does not fit; not even into it's own USB-C port! When comparing the connectors, they are not the same thickness, nor the same depth; I can't check the inner connecting terminals.
Summary: I decided to keep the power bank because I did not purchase it for the built in cables. I had always planned on using my own cables.