I went to the local 'Batteries Plus' store and got an AGm maintenance free battery. The guy said it was the stock brand for newer Harleys (Though not made by them, sigh of relief) and it is serving well. The Sears Die-Hard I had lasted more than 7 years and I never even looked at the thing.
A fella on the site here said on his maint free he adds about a cc of distilled H2O annually and his battery has lasted longer. Anywho...
I ride as close to daily as possible. Is there a chance your alternator is overcharging and boiling off some of the distilled in the battery? I would pop the top of the battery every couple months and be sure the electrolyte level stays consistent.
Sorry fo the almost hijak.
I second the odyssey, great battery had mine two years so far in the 1500, and a battery tender jr. good battery tender will add years of life to a battery, I have a powersonic brand in my 1100I been in their for over six years great battery also.
I as well as "on a wing and a prayer" have recently installed an X2-18L from Batteries Plus.It tested at 330cca. My 2 year old Bikemaster battery tested at less than half of that.My bike starts so fast now! the way it should!:hi: ( $ 130.00 ....well worth it!)
I bought a Chrome branded agm off ebay, shipped by USPS for free, battery was $66, heckof a deal. almost impossible to get anything shipped to Alaska cheaply, and the local stores wanted over $200 including Napa.