Anker 2nd Gen Astro3 12000mAh Power Bank External Battery Charger for Smartphones, Tablets, and USB devices (1 Smart Port & 2 Universal Ports)

Packed with Power

We figure, the more power, the better. Packed with 12,000mAh of juice, and featuring an energy efficiency rate 10% higher than the previous generation, the new Astro3 charges the iPhone six times and large-capacity phones like the Galaxy S4 almost four times. Keep multiple devices going yourself, and still have juice left to share.

The Faster the Better

Waiting was never fun, was it? That's why we created the new Astro3 with a smart port that detects USB pin signals to identify your device - whether Apple, Android, or even the Samsung Galaxy Tab - and charge it at full speed. With two additional ports, no need to wait in line either.

Double Take

Chic and minimalistic, the new Astro3 may feel reserved at first. But, a friendly "shake" reveals its warm inner light to display the power level or begin your charge. Generous, cool, and delightfully intuitive, the new Astro3 is perfect for your next adventure, or just the daily grind.

For Optimal Use

- For simultaneous, max-speed charging of your Astro and other devices, check out Anker's new line of 18W / 3.6A car and home adapters.
- Compatible with all Apple and Android smartphones, tablets and other USB charged devices with a 5V charge input. The iPod nano and some GPS and Bluetooth devices are not supported.