SW-Motech on mine. The right side is removable without removing the bars but is a royal PITA. There is zero clearance and the panel needs to be forced out. 9/10 times I have loosened the bars to give me clearance and save some scratching on the panel. Thankfully, I have never needed to remove it on the road.
That reminds me, I need to put in my new battery, F#$&...