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1200mAh USB/Solar Charger Battery with Silicone Case for iPhone 4S 4
The Best Lighter Case for iPhone 4/4S - SMARTLIGHT - SMART-LIGHT
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External Battery Charger for iphone 4 4S Battery Case 1900mAh Backup Rechargeable Quick Charging Battery Power Charger Cover
uNu DX Plus Extended Battery Case for iPhone 4/4s DX-04-2400BS
iPhone 4/4S Extended Battery Case Shoot-out - YouTube
LawMate PV-IP45 iPhone 4/5 Case with Covert Camera & DVR PV-IP45
Top iPhone 4 and 4S extended battery cases - CNET
Mophie Juice Pack Air Plus Case/Battery - iPhone 4 - QVC.com
Mophie Juice Pack Plus Protective Battery Case for iPhone 4/4S (Black) (Certified Refurbished) - Walmart.com
Best Buy: Merkury External Battery Case for Apple® iPhone® 5 and 5s Black MI-BPA01-101
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External Battery Case (1900mAh) for Apple iPhone 4s (Black)
MiLi Power Spring 4 External Battery Pack for iPhone 4S / 4 - 1600mAh
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MiLi Power Pack 4 3000mAh external battery pack for iPhone 4S / 4
