Here it is with a Hobie bait tank, full of water, pump under load:
12V --> 1.37A
11V --> 1.20A
10V --> 1.06A
9V --> 0.91A
8V --> 0.77A
7V --> 0.64A
6V --> 0.52A
5V --> 0.39A
Good thing I did this. When I had the tank full, I noticed the front seam is split and leaking

. Not from abuse, maybe a manufacturing defect? Time to get out the 5200.