I had my thoracic battery pack moved, which was initially in my right hip/buttock area and it bothered me quite a bit. It turned and poked out, etc., especially when I sat down. Which would hurt when it hit the car seat or office chair since it was poking out and those seats are curved. But the cervical one on the left side seemed more stable. So when they had to change out the thoracic leads, they moved the battery to the front/side area....it is better there!
I wish the cervical one had been placed in the front/side too! I actually wanted it moved because it is harder to reach back with my RSD arm (wish I had thought about that a little better), but the insurance company wouldn't approve moving that one at the time...gotta love it!
Good luck!
Nanc