I need to test around 500 12v batteries for a large UPS power bank. According to the datasheet these batteries should be tested under a 3x load and confirmed voltage exceeds 9V. Being 6Ah batteries this would mean I need an ~18A load.
I have a car battery tester, but it only goes down to 100A. Do you guys know of a relatively inexpensive tool which could test at such a low current? Considering how many batteries I have to process, I would greatly appreciate some direction!