On the DT300, the battery is right behind the rear of the tub and there are several openings down toward the ground. So I just put the pigtail thru a hole and down under the plastic and tied it off to the rear, left side reflector bracket. However we reach the outside, a pigtail is the way to go. Nothing to do but plug her up. Mine stays connected 24-7 when I'm not riding.
Mac