Simplify the following text for a Grade 10 native English-speaking person.
Original: This solution still has potential failure cases : the battery may have worn out , the power may be off for too long , the disks could be moved to another controller , the controller itself could fail .
Simplified: This solution can still fail , though : the battery may have worn out , the power may have been off for too long , the disks could be moved to another controller , the controller itself could fail .