Well, we'll see. Once again I replaced the battery in my JD Buck 500 last month - T16L Energizer Powersport. The battery is NOT the same as the Yasua that was original but its the closest I can get with limited purchase options in my area. I believe CCA is slightly lower and the case is slightly less in length. Height and width are the same for however that counts.
But the upside is I get my starting batteries at Les Schwab and while they are a bit more expensive they don't screw me around with testing, etc. Take the block in, they look it up in my account, apply the warranty credit (7 years) and I'm gone with the new one. Over time I've gotten royally honked for battery warranties but never from Schwab. We are off grid and heavily battery reliant. I know lead batteries and maintenance. The folks that say they get more life from a battery maintainer are correct. I believe it helps greatly over time, esp for rigs that are outside year around.
BTW, a tip to share: Its a PITB to see the electrolyte level through the case in MC style batteries. I use a 2oz syringe with a piece of tubing on the end, trimmed to the fluid level for that battery. I put an ounce of distilled in it insert it into the cell and draw. If bubbles I push a very little water in and repeat. Then do the same for each cell. It makes watering the battery easy, quick and accurate.