Ed's Knob Mod

 I've never liked the hex-head over the battery cover.  It meant I had to get out a wrench to check fuses and the battery. 
Unfortunately, I've had lots of opportunity to do this lately because I had a bad battery that I eventually replaced.
I also installed a quick connect trickle charger hook up but didn't fish it up under the seat, so I had to remove the cover to plug it in this winter. Finally, On a ride a few months ago, the bolt wasn't snug and rattled out. So I went to the local Wilco and bought a 6mm male knob and voila - easy access.