Will there be any issues with attaching both a heated gear and trickle charger battery quick connects at the same time? Obviously, I won't ever be using both at the same time, bu will the connectors interfere with one another while either is in use?

 

other than sometimes it makes it a bit difficult to keep everything tight it will not cause any problems. I have changed the terminals to fit the battery bolts on some of the harnesses before too.

 

Just make sure the terminal screws are long enough and that the connectors all lie flat to make good contact with each other, so that the screws can be tightened fully. A lot of power flows through the main cables when starting the bike and it is important that the extra connectors don't interfere. Otherwise you'll be fine. You may be able to wire in your heated gear through the fuse box, which is worth considering, which will reduce the connectors at the battery terminals.