Zendure A2 6700mAh Crush-Proof Portable Charger, Silver;

ZENDURE: Crush Proof External Batteries for Everyday Life

Originated from one of the most successful external battery projects on Kickstarter
It can survive being run over by a sedan. Yes, we mean it.
Zendure strikes the perfect balance between durability and style.

ZEN+: Ultimate compatibility
The port automatically detects your device and fine tunes the output to charge it at maximum speed (up to 2.1A). Enjoy top charging speed with a "Zen" peace of mind.

Compact & Lightweight
A2 is one of the most compact and lightweight external batteries in the market for its capacity, thanks to the use of top quality components. With 6,700 mAh capacity, this little thing can easily double your phone usage.

Packed with Features

The unique charge-through function allows you to charge the external battery while it is charging your devices, a feature rarely seen in external batteries.
The A-Series battery will automatically turn itself on when connected to a compatible device for charging, then switch back to standby when charging is complete.
The A-Series battery can maintain up to 95% of its charge after six months without use.

For Optimal Use

The Zendure A-Series is compatible with almost all Apple and Android smartphones, tablets and other USB-charged devices. However, the iPod nano, Asus tablets, the LG G2 and some GPS and Bluetooth devices are not supported.
Use your device's original cable or our included cable to charge your devices.
Disconnect all cables from the Zendure battery if you don't intend to use it for a long period of time.