My battery in my 2011 is the orginal as well, over 5 years old now. I don't have a battery tester but I do hook it up to a battery tender over night once every week or two in the winter. Bike starts up just fine but I too am starting to think I may need a new one before I take any long trips this year.
2011 Cross Roads Sunset Red
OEM short windshield, passenger backrest, crash bars, saddle bag bars, heated grips, vinyl closeouts, tachometer, ambient temp, LED headlight, luggage rack. WD lay down licence plate.