I put a sealed AGM battery in my KLR because it is a pain to get to and check fluid et al. But for 15 bucks; haven't bothered on the CT's.

Glenn

1974 CT90 K5
2012 Honda Silver Wing
2005 Honda Gold Wing 30th Anniversary Edition

American Legion Riders Post 12
 Wickenburg, AZ

BZMF #091, English Chapter

" Keep brotherhood till die "