About Anker® Astro:
Anker® Astro is a line of portable external batteries designed for our modern mobile age. High capacity power and compact designs make these batteries a reliable power companion on the go. With affordable prices and great Anker customer service, never get stranded without power again.

Thanks to our customers, Anker has 5 products listed in the top 10 of Amazon’s top-rated Cell Phone Batteries category.

Popular Compatible Models:

Please Note Astro 3E will not charge devices with input currents lower than 80mAh, including iPod Nano and some Bluetooth and GPS devices

Apple: iPhone 5 4s 4 3g / iPad 4 (Retina display) 3 2 1 / iPad Mini (Use with your original Apple Lightning to USB cable)
Samsung: Samsung Galaxy S4 S3 S2 / Galaxy Note 2 / Galaxy Nexus / Ace / Focus
Google: Nexus 7 / Nexus 10
HTC: One X, S, V / Sensation / Inspire / Droid / ThunderBolt / EVO / Radar
Amazon: Kindle / Kindle Fire
Motorola: Droid Razr Maxx Bionic / Triumph
Sony:Sony Xperia Z J P
Blackberry:Blackberry Z10 / Curve
LG: Nexus 4 / Optimus / Touch
Others: PS Vita / MP3 MP4/ GoPro

Please note Astro3E is not compatible with Asus Tablets and Samsung Tablets

Astro3E Spec:
— Performance for iPhones: 400%-500% battery life
— Input charging time: 8-10h via 5V / 1A Oupput standard USB or AC adapter (not included)
— Input: 5V / 1.5A (max)
— Output: 2x USB 5V / 3A (dual charge @3A total max); Minimum required current: 80mAh
— Size: 5.6 x 2.8 x 0.6 inch; Weight: 8.5 ounce
— 18 months warranty

Charge the Astro3E:
–We strongly recommend using an adapter with output current 1A or over to charge the Astro3E. Otherwise, charge time will be significantly prolonged.

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Product Features

  • Huge Capacity, 10000mAh; Add 4-5 full charges or 40 hours of talk time to iPhone 5 / 4S / 4, 3 full charges for Samsung Galaxy S3, a full charge for iPad / iPad 2, or 400% + to most mobile phones’ battery life
  • Dual USB ports: charge one device with up to 3A output, or charge dual devices at 3A total max; Custom Android and Apple ports specially designed to charge Android and Apple products; Can individually or concurrently charge Android phones and iPhones at full speed; LED indicates charge level
  • Slim & stylish design, 0.6 inch thick; Easily fits into your bag to provide instant power; Charge your devices anytime, anywhere; PERFECT for long plane flights, road trips, or whenever you need to charge your mobile devices wherever you are. Use a 1.5A adapter (not included) for fastest charging the Astro3E.
  • Reliable Lithium Polymer battery ensures high quality; 500+ recharge cycles over the life of the battery
  • Package includes: Anker External Battery / 4 connectors for most phones / 1 spring USB power wire / 1 user manual / 1 convenient travel pouch.