Slim Case and Smart Battery System for iPhone 4

by Third Rail

Remove

Elite Battery + Case for iPhone 4 and iPhone 4S

by Phonesuit

Remove

OffGrid Pro Backup Battery Case for iPhone 4 and 4S

by Incipio

Remove

OffGrid Backup Battery Case for iPhone 4/4S

by Incipio

Remove
Price
Pros
Cons
At A Glance