Deka makes original Harley Batteries.
But for some reason on the new bikes they just ain't been holding up.

The Xtreme from Batteries Plus will beat the Stock Harley Battery out. HAnds Down.
Got more power.

 

I went with a Battery Tender lithium battery last year when my Sportster needed a battery. I'll be putting one in my Dyna this year. No tender required, better cranking and in a smaller package.