Last fall my zumo 550 stopped charging. One of the contacts on the bottom had eroded away. Neither the bike or car mounts would power the zumo. I sent it to Raytech in Montreal for repair and $200 later I had a good working zumo. Riding around in "Hill Country" for the month of March, the zumo quit charging again. This time one of the springy pegs on the mount was "bent"( as in not verticle). Yes, the peg that matched the eroded contact. When I tried to carefully straighten the peg - it fell out. I tried to push the peg back into its socket but it wouldn't stay there. I have ordered a new mount for $81 It seems very likely that the "wobbly" peg caused the contact to eroded. In the picture you can see that this peg is well protected so I am at a loss as to why it bent. Has anyone else had this problem?