Ordered 4 x 12V9AH batteries w/ F2 terminals and they shipped in a timely matter. One of the batteries was missing the F1 to F2 terminal adapter, but I contacted the company and they responded within a 24 hours and shipped a few out as replacements. All four batteries charged up evenly on my Victron BlueSmart charger, and all seems to be working as expected. These are going into an APC 1500 UPS. Time will tell if they fail early or not, but I'd buy again at this point.