My Moto Z battery just expanded within the case to the point that it cracked the screen and will not allow me to reset the screen back into the case. Since I have been using a Moto Z Mod(Mophie) auxiliary battery pack, I have had to replace two internal batteries within the last 10 months. The phone in its current condition still functions OK but is at risk of being contaminated by any foreign matter such as dust or water. My question is should I consider replacing the expanded battery once more and send the phone back to Motorola for repairs? I have searched the internet and this forum but have not found any similar problems being reported. Has anyone else had this problem? I am also considering going to a Samsung Galaxy 9 or other comparable smartphone. Any thoughts?