- Exera battery case
- Three 1,700mAh rechargeable battery modules
- Multifunctional duo charging dock hub
uNu Exera 5,100mAh Battery Case System for iPhone 4/4s
Pop in a Fresh Battery When You Need It
- Swap 1,700mAh external batteries in and out of the case
- Lets you use your phone longer between charges
Recharge Batteries and iPhone Simultaneously
- Two battery ports for charging two battery modules
- USB port for charging iPhone with Exera case on
- Keeps a rotation of charged batteries available
- Removable battery housing
- Interchangeable slim back cover
- Bumper for added edge and display protection
- Access to buttons and speakers
- Condition: new
- Dimensions: 5” (L) x 4” (W) x 3” (H)
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