As far as battery removal, I haven't had to remove mine yet, but I found these instructions online.
1. Place the bike on the sidestand.
2. Remove the bolt and disconnect the battery negative (-) lead.
3. Remove the screw securing the battery positive (+) cable terminal protector, remove the protector
4. Remove the bolt and disconnect the battery positive (+) lead
5. Remove one of the front lower bolts securing the battery case floor in place.
6. Either hold onto the battery case floor or place wood block(s) under it to support the floor when the other bolt is removed.
7. Remove the front lower bolt from the other side of the case.
8. Lower the battery case floor and slide the battery out of the case.