Just replaced an Exide MegaCycle 31-MCX with a NAPA Commercial battery P/N 7235 today.
My Exide stuttered a couple of times last year when starting after fishing for a while and figured it was time to replace. The Exide was in my boat when I bought it used May 2012. The date wasn't stamped on top but noticed the manufacture date on the side after I took it out of the boat: Nov 07.
The NAPA 7235 has good specs: 1125 cca @ 0*F, 1380 ca @ 32*F, 195 reserve capacity. Measured 12.66v with a DVM before charging and only took a short time to show fully charged after I plugged it in. I thought the battery would need water added as needed but appears to be maintenance free as there is no vent caps to remove.
https://www.napaonline.com/en/p/NBE7235
EDIT: It was brought to my attention from a BBC member that has a NAPA commercial battery in his boat that there are vent caps under the sticker but has not removed the sticker or added water in the 3 years he has had the battery. Might be a good idea to remove the sticker and check the levels for each cell after the warranty has expired and add distilled water as needed.