Unplug your power and take it with you.
If you're a long-haul power user, our Anker Astro 5600mAh external battery packs deliver 22 hours of talk time or 2-3 full charges to your iPhone 4S / 4G / 3GS; 1-2 charges for Samsung Galaxy S3, over 200 hours of audio playback, or 200 - 300 percent to the battery life of most mobile phones.
Anker Astro 5600mAh external battery is designed to get you powered up, without getting in the way. You can easily slip the Anker Astro into your jeans or purse for easy confidence on the go.
Whether you need to charge your smartphone, iPhone, iPad, PSP, netbook, or tablet, we have the right external battery and matching charging tip for you.
Grade A cells and premium microchips ensure over 500 recharge cycles over the life of each external battery.