NEXT time you can get the AGM YTZ14 battery. It is a stronger battery in addition to being an AGM, they are less expensive. Also using the '14 battery gives you a great place to install relays and such for add-on lights and accessories. The HYB16a-ab is the stock battery, they just don't last very long and they leak and are prone to sulfication of the plates.
93 VT1100C Harley Killer (1150cc), VH Exhaust, 2mm sleeved and bored, Modified Heads and Valves, Adjustable Timing, Touring Seat, Baby Apes, Metzlers