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uNu Exera Modular Detachable Battery Case for iPhone 4/4S - Available In 5 Colors!

Must Have Accessories For Your iPhone!

Original Price: $99.99
Shipping: Add to Cart to See Price!

Innovative Detachable design: Double the battery life for iPhone 4/4s without adding bulk. A distinct and stylish case for everyone. 1700mAh Swappable Battery Module, which enables unlimited power with additional battery cells (sold separately).

Exera adds additional 7 hours of talk time, 10 hours of music time, 6 hours of web browsing, and 270 hours standby. Smart charging switch. Accurate remaining power indicator.

Double the battery life
Ex-Era can double the usage time for your iPhone 4 and 4S and helps users fully utilize their iPhone to complete daily tasks, such as Talk, web, text, video, music and gaming, without worrying about always having to recharge.

Made for iPhone
Featuring Apple’s coveted Made for iPhone certification, this powerful smart battery case has passed various lab test to ensure safety and reliability

Detachable Design
The EX-Era case is designed to its minimum form factor, plus a 2 piece slide-on detachable design, Ex-Era will only add the bulk when you need extra juice

Swappable Battery
The Ex-Era features a swappable battery module. It enables endless power supply for your iPhone with additional batteries (purchased separately)

*A Powerful Battery Case Or A Stylish Slim Case`
The answer is BOTH. Ex-Era comes with a ultra-thin back cover in either glossy white or matte black, which converts the bulky power case to a stylish slim case

Fully protected
The durable and stylish case offers the full protection of a hard-shell case and will protect your iPhone from bumps and scratches, so your phone will look and function like new.

Fully functional
Don’t give up any iPhone features or functionality. With the Exera, you’ll be able to easily access all of your controls, as well as speaker and microphone.


  • Brand New
  • 30 Day Warranty

Shipping Information:

  • Shipping Price: Add to Cart to See Price!
  • Estimated Delivery: between Jul 11 - Jul 21. (more info)
  • Return Policy: Returns available within 30 days (more info)
  • Ships To: U.S. (No AK/HI, No P.O. Boxes, and No Military Addresses)


Questions? We're Here to Help!

Our awesome customer service department is ready for your questions! Although we are a small company (26 of us total), we will do everything we can to answer your questions and take care of any problems.

Contact Tanga's Customer Service

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