I found my way is pretty easy(Maybe for me

)
1. Remove the toolbox cover
2. Remove 3 screws that hold the side bracket to get access to battery
3. Pull the battery out about 1/2- 1 inch
4. Remove the screw/bolt that attach the + wire to battery post (Warning-do not let your screwdriver touch bike frame)
5. Now push the battery all the way back inside the battery box and remove the - terminal from the left (I know! There is small cover in the way; but pivot that cover toward the rear then you have more room to work with)
6. Pull the battery out
Took me about 5 minutes to pull it out. Took a bit longer to put back in. Just reverse the above order of remiving.