Here are a couple of battery tests from the TopDon battery tester. The first one is a X2 Power from Batteries Plus, which I believe is the same battery as the Odyssey Extreme. The second is a Diehard Platinum AGM from advance, which is a Clarios Battery. The third is a AC Delco regular flooded. They are all the same 24F. If these battery testers are accurate, this X2 is pretty impressive compared to the rest. They are expensive, but they appear to be superior to your normal off the shelf batteries. CCA far exceeds specs, and internal resistance is the lowest of the bunch. Plus 48 month free replacement.