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ANKER: Amazon's #1 Charging Brand
? The highest average review rating of any charging brand.
? One in three chargers sold on Amazon is from us.
? Join the 10 million+ satisfied customers powered by Anker.
2nd Generation Astro E4 Portable Charger ?External Battery Power Bank
Supersized power in the palm of your hand.
PowerIQ Detects your device. Delivers the fastest charge.
Exclusive to Anker, PowerIQ amp-adjustment technology intelligently identifies your device to deliver its fastest possible charge.
Enough power to keep you going for days. Charge an iPhone 5s almost six times, a Galaxy S5 over three times or an iPad Air once.
The new E4 weighs under a pound and rests nicely in your palm. Press the button to check your power level or hold to activate the flashlight.
We use only premium LG battery cells, together with the most advanced materials and cutting-edge technology, to ensure complete safety.
World Famous Warranty
At Anker, we believe in our products. That's why we back them all with an 18-month warranty and provide friendly, easy-to-reach support.
For Optimal Use:
? Use the included cable, your original cable or a third-party certified one (such as MFi).
? Compatible with Apple and Android smartphones, tablets (including the Nexus 7) and other USB-charged devices except for the LG G4 / G2, iPod nano, iPod Classic, HP TouchPad, Asus tablets and some GPS and Bluetooth devices.
? To give your Astro E4 the fastest, safest recharge, use an Anker USB charger. Using an ordinary phone charger may cause overheating.