
Astro E5 External Battery
Welcome Guide

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Astro E5 External Battery

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Package Contents
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Anker Astro E5 External Battery
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Accessories
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Welcome Guide
Identification of Parts
1. Micro USB input port
2. 1A USB charging port
3. 2A USB charging port
4. LED flashlight
5. Power button
6. LED power indicators
①
②
③
④
⑤
⑥

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Technical Specifications
Capacity 16000mAh
Net weight 316g / 11.1oz
Size 126 × 77 × 24mm / 4.9 × 3.0 × 0.9in
Input Micro USB DC 5V / 1.5A
Charging Port Output 1 USB DC 5V / 1A (min 40mAh)
Charging Port Output 2 USB DC 5V / 2A (min 80mAh)
Total Output 5V / 3A
How to Charge Your Astro E5
1. Always press the power button to check the power level before charging as
the LED lights will not automatically light when the device is fully charged.
2. Plug the Micro USB cable into the Astro E5’s input port.
3. Insert the remaining end of the USB cable into (a) an AC adapter (not
included) connected to the wall socket or (b) a charging computer USB port.
4. Push the power button to begin charging.
5. The LED indicators will remain lit when the Astro E5 is fully charged.

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The Astro E5 external battery is fully compatible with all 5V AC adapters.
Reference the chart below for the charging times of different adapters.
USB Adapter Charging Speeds
Adapter Current Output Charging Time
5V / 1.5A 9-10 hours
5V / 1A 15-16 hours
5V / 0.5A 28-31 hours

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Power Meter Display While Charging Other Devices
LED Power Meter:
Charging
LED Display Battery Capacity
First light blinking < 25%
First light on, second light blinking 25% - 50%
Two lights on, third light blinking 50% - 75%
Three lights on, fourth light blinking 75% - 99%
Four lights on Fully charged
How to Use the Astro E5 to Charge Other Devices
The Astro E5 is suitable to charge all DC-5V input devices.
1. Plug the USB power wire to the Astro E5 USB output port.
2. Attach the remaining end of the USB power wire to your device.
3. Press the power button to begin charging your device.
4. The LED indicators will extinguish automatically when your device is fully
charged.

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LED Indicators:
Discharging
LED Display Battery Capacity
Four lights on 100% - 75%
Three lights on 75% - 50%
Two lights on 50% - 25%
One light on 25% - 5%
First light blinking 5% - 0%
Usage Notes
1. To protect the long-term capacity of your device’s battery, please unplug the
power wire promptly after the device is fully charged.
2. Keep the product away from extreme heat or cold, as well as any flammable
items or damp places. Also avoid dropping, hitting or throwing the product.
3. Please fully charge your external battery at least once every four months to
avoid shortening its lifespan.
4. Do not try to charge and discharge the Astro E5 at the same time, as this
may reduce the battery’s lifespan.
5. The battery is 82% efficient, accounting for power lost through circuit heat
and voltage conversion, which is up to 5% above the industry average. Energy
is also lost within the charging cable and your device (approximately 15-20%).

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FAQ and Solutions
1. Can I use the Astro E5 to charge 2 devices at the same time?
Yes. But when using 2 charging ports simultaneously, the total output current
will not exceed 3 amps.
2. What if the Astro E5 fails to charge?
Check that the adapter connection is secure, or replace the adapter if the
current one is not functioning normally.
3. What if the Astro E5 fails to charge other devices?
Ensure that the power cable is securely in place, or check that the Astro E5
voltage is compatible with the electronic device's required charge voltage.
Please refer to your device's instruction manual, product labeling, or adapter
to find this information.

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Warranty
Our company provides customers with a warranty of 18 MONTHS from the
date of purchase.
Contact Us
For any inquiries or comments concerning our products, please send an email
to support@ianker.com, and we will respond to you as soon as possible.
If there is any quality-related issue with the product, you may request a
REPLACEMENT OR REFUND by submitting a request form at www.ianker.
com/support.
Statement
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We’re only able to provide after-sales service for purchases made directly
from Anker. If you purchased through a different retailer, please contact them
for any exchange or refund requests.
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Please note that unauthorized reselling of Anker products is prohibited.

1-800-988-7973 (U.S.) Mon-Fri 9:00-5:00 (PST)
www.ianker.com
support@ianker.com