Are you sure the length is 11 inches? I have two in my RV and they are only 10 inches long. Did the design change?

Hello and thank you for your inquiry. I doubled checked and it looks like the length was incorrect on our site so it has been updated with the correct length. Thank you for bringing it to our attention. Here is a link with the correct dimensions. https://www.battsys.com/centennial-marine-deep-cycle-battery-dc24mf-group-24-maintenance-free