I ride on O8 GL1800 w/ the HTS1800 Kit, Triked in 2014.... Installed a new battery this spring. A tight fit but found by unhooking and pulling the Fuse Panel (attached to the battery case) a bit out of the way made the removal and installation process a bit easier but still a PIA to connect the cables. Attached them as I slide the new battery in place. Good Luck!!