Battery OEM Mazda or Energizer

my only option for a "proper" battery was a red top at $150.00. The next best thing was a group 47 Energizer, 590 CCA, 3 year full replacement, 7 year warranty from Sams Club for $65.00. I just dropped a load on the clutch and I don't plan on keeping the car for more than another 3 years. I only use synthetic oil so it cranks easier in the winter anyway. SO I got the energizer.

Name brand but avoid ebay. I bought some energizers and panasonics from more than one (supposedly reputable) ebay seller a while back that didn't last more than a month or so.

So far have not had any issues except for dud OEM battery, kriginal and warranty...