Welcome to the world of computer testers pre programed at the directions
of the retailers 
I will guess Auto Zone being the retailer since a optima battery, but maybe not just a guess 
I am sure you have a red top and not a yellow top ?
I had two yellow tops when i was still in the car business, they were take offs at 35.00
each. Lasted several years with a 180 amp altenator but being a deep cycle battery were
always a little soft cranking that ol diesel.
New ones I noticed at auto zone (yellow ones) were a 165.00 each retail
Geezzzz
If i were to buy new ones they would be red tops, but heck these 1000/875cca from
wally world have been doing fine. 3 years free and 9 years total Now thats a deal 
BTW, we have the same BS checkers, but I keep a old one under the counter at least
i did....
Dec. 15th will know if i can ever work at that again, or much of anything for that matter.
Regards,
John