Brando today announced it has released a battery case for the Samsung Galaxy S5 with a built-in 3500mAh battery, the Power Jacket for Samsung Galaxy S5. Here's more info on this external battery case for the Galaxy S5:
An ergonomic design of portable back-up battery pack for Samsung Galaxy S5. It can be used as a protective cover, protects your Samsung Galaxy S5 from strong momentum and provides excellent console protection. Prop your device at a comfortable viewing angle with built-in stand.
Unique sliding design fashionable and high-class, charging/sync, simply plug in the USB turn micro USB to the micro USB female dock, connect the USB to a powerred USB equipment or computer.
Charge the Power Case by USB cable. Plug the power station to charge your Samsung Galaxy S5 at any time and any where. To charge the phone, simply slide in the phone into the portable battery and slide ON-OFF switch to on.
Features: - Recharge Samsung Galaxy S5 On the Go - 3500mAh High Power Capacity - Charge with Micro-USB Charging Port Only - Lightweight and Protective - With Battery Power Indicator