Here is what I am planning to add to my engine compartment to allow me to charge the battery without removing the cowling.
It's a 2-piece harness made of the male/female connections that are the same as that of my Odyssey battery charger (photo 1). At the right of the assembly is a black fast-on terminal that will go to my grounding block, which then goes directly to the negative post of the battery. The red ring teminal end will go directly on the positive battery post. It has an in-line fuse.
One end will attach to the lower cowl by poking through and being attached with small nuts/bolts (photo 2). This will directly interface with my Odyssey battery charger.
Photo 3 is the middle connector. This will allow me to separate the cowl from the airframe and battery.
Male/Female fitting that will go on the exterior of the cowl
Male/Female connection for separating the cowl from the airframe.