Thats confusing. I bought a glass mat battery recently for my 1500. Would like to take it off and put it on the new 1800 when it arrives. So i need to know if it is a straight swap? Otherwise I will leave it on the bike when the dealer picks it up. But it was expensive so would like to keep it.
Just went through the same thing.I pulled the side cover on the 18 and the physical size difference looked pretty obvious,so my AGM went to a new home with the 15.Hope I didn't screw up.Loved the AGM.Wound the 15 over like the plugs were out.