Astro E4 - Phone charger Anker - Free user manual and instructions

USER MANUAL Astro E4 Anker

2nd Gen Astro E4 External Battery Welcome Guide1 Compatibility maximized: Meeting your device’s unique charging needs. Ever wonder why your smartphone charges faster from some charging ports and slower from others? Often, it's not just the power that your charger can offer. Instead, it comes down to compatibility. Some ports simply don't speak the right language to open up your device to full speed charging. Try plugging an iPad into an Android adapter and your charge time could double. Our solution? PowerIQ™ technology communicates with any connected device by speaking its unique charging language. Each port intelligently identifies your device and adapts to its specific recharge rate. So thanks to PowerIQ™, together with Anker’s industry-leading output, you can enjoy maximum compatibility that doesn’t limit your charging speed.2 Package Contents

Anker 2nd Gen Astro E4 External Battery

3. USB charging ports

How to Charge Your Astro E4

1. Plug the Micro USB cable into the Astro E4’s input port.

2. Insert the remaining end of the USB cable into (a) an AC adapter connected

to the wall socket or (b) a charging computer USB port.

3. The battery will automatically begin to charge and will turn off when fully

charged. Power Meter Display While Charging Your Astro E4 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 (a) (b)4 The Astro E4 external battery is fully compatible with all USB adapters. Reference the chart below for the charging times of different speed adapters. If you purchased the version with an included USB adapter, the recharge time is 6-7 hours. USB Adapter Charging Speeds Adapter Current Output Charging Time 5V / 2A 6-7 hours 5V / 1.5A 8-10 hours 5V / 1A 13-15 hours 5V / 0.5A 25-28 hours5 How to Use the Astro E4 to Charge Other Devices

1. Plug the USB power cable into a charging port.

2. Attach the remaining end of the USB power

cable to your device.

3. Your device will automatically begin to charge.

4. The LED power meter will automatically turn

off when your device is fully charged and not drawing a current. Power Meter Display While Charging Other Devices LED Power Meter: 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%6 Astro E4 Power Meter Instructions Press the power meter button once to trigger the LED power meter and display the remaining power level.

Each of the LEDs represent 25% of the battery’s capacity.

The LED power meter will turn off when the device is fully charged.

The LED power meter will stay on when charging a device, displaying the battery’s remaining power, and will turn off when the device is fully charged and not drawing a current.

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 E4 at the same time, as this

may reduce the battery’s lifespan.

5. Since the combined output of both ports is limited to 3 amps, concurrent

use of the two ports may slow the charging process.

6. The battery is 92% efficient, accounting for power lost through circuit

heat and voltage conversion, which is up to 10% above the industry average. Energy is also lost within the charging cable and your device (approximately 15-20%).8 FAQ and Solutions

1. Which port should I use to charge my device?

Thanks to PowerIQ™ technology, each charging port can charge at speeds of up to 3 amps — no need to decide between them.

2. Can I use the Astro E4 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.

3. What if the Astro E4 fails to charge?

Check that the adapter connection is secure, or replace the adapter if the current one is not functioning normally.

4. What if the Astro E4 fails to charge other devices?

Ensure that the power cable is securely in place, or check that the Astro E4 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.

5. Why can’t I charge my Bluetooth device with the Astro E4?

The Astro E4 will not charge devices with input currents lower than 50mA, including some Bluetooth and GPS devices.9 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

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.