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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.

Huge Capacity
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.

Slimmer, Sleeker
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.

Superior Quality
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 iPod nano, iPod Classic, HP TouchPad, Dell Venue 11 Pro, Asus tablets and some GPS and Bluetooth devices.
• Remove film before use.

 

 

 

 

	Astro Mini External Battery	2nd Gen Astro External Battery	2nd Gen Astro E4 External Battery	2nd Gen Astro E5 External Battery	2nd Gen Astro E6 External Battery	2nd Gen Astro E7 External Battery
Color Selection	Black, Silver, Pink, Blue, Gold	Black, White, Blue, Green	Black, White	Black, White	Black, White	Black, White
Battery Capacity	3200 mAh	6400 mAh	13000 mAh	16000 mAh	20800 mAh	25600 mAh
# of iPhone 6 charges	1.2	2.5	5.0	6.2	8.8	10.0
# of iPad Air charges	0.3	0.5	1.0	1.3	1.8	2.0
# of USB Charging Ports	1	1	2	2	3	3
PowerIQ Technology	✓	✓	✓	✓	✓	✓
Max Charging Speed	1 Amp	2 Amps	3 Amps	3 Amps	4 Amps	4 Amps
Size	3.5 × 0.9 × 0.9 inches (lipstick)	3.7 x 1.8 x 1.0 inches (candybar)	5.9 × 2.5 × 0.9 inches (glasses case)	5.9 × 2.5 × 0.9 inches (glasses case)	6.5 × 3.1 × 0.9 inches (Galaxy Note 4)	6.5 × 3.1 × 0.9 inches (Galaxy Note 4)
Weight	2.7oz (egg)	4.8oz (baseball)	10.4oz (iPad mini)	10.4oz (iPad mini)	15.8oz (football)	15.8oz (football)