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Aukey 20000mAh

Aukey 20000mAh

The word of the day for the Aukey 20000mAh is capacity. Sturdy yet portable, it’s a device you can rely on.

AUKEY 20000mAh at a glance

Key specs


20000 mAh

74 Wh

Dimensions (LxWxH)

6.2 x 2.9 x 0.75 in

15.75 x 7.37 x 1.91 cm


11.8 oz / 334 g

Charging technology

Charging time: 7 h

Adaptive charging

Qualcomm Quick Charge

Power Delivery (PD)

Low-current charging

PBE metrics


444.54 mAh/$

327.45 mAh/$


59.88 mAh/g

1694.92 mAh/oz


USB Type A

USB Type A

Output: 5V/3A, 9V/2A, 12V/1.5A
USB Type A

USB Type A

Output: 5V/3A, 9V/2A, 12V/1.5A
USB Type C

USB Type C

Input: PD 5V/3A, 9V/2A, 12V/1.5A
Output: PD 5V/3A, 9V/2A, 12V/1.5A
Micro USB port

Micro USB

Input: 5V/3A, 9V/2A, 12V/1.5A

Flight status

Under 100 Wh

Status: Safe

The power bank is safe to take on board. It's under the specified TSA limit of 100 Wh. Read more about taking power banks on planes.

Other features

LED power indicator

Charging cable

Check price on Aukey.com


Charging capacity calculator

Use the search bar below and find out exactly how many times can the AUKEY 20000mAh charge your smartphone battery

Aukey 20000mAh Power Bank Review

Looking for a high-capacity charger that lives up to its charging claims? The Aukey 20000mAh Power Bank might just be the charger for you. With USB Type C and Micro USB inputs, a solid, neat design, and a whopping 20000mAh, it’s certainly an option to consider. But is it perfect? Read on to find out!

Capacity & charging speed

At 20000mAh, it’s enough to count on it for several days if you’re an average smartphone owner. It features four different ports: 2 USB type A, one in/out USB type C, and one micro USB for input only. This means you can use this Anker portable charger to top up 3 different devices simultaneously.

The USB type C port features 18W PD fast-charging, which means that you’ll be able to take advantage of faster charging times if you have a compatible phone. For a more comprehensive list of power banks that feature PD fast charging, check out this article.

However, with a big battery comes long charge times, expect to wait between 10-20 hours if you’re using a low-power adaptor. But with an 18W PD charger, this time can be reduced to only 6.8 hours. Even so, this is not something to write home about, especially since there are a lot of power banks with faster charging times.

Look and feel

The Aukey 20000mAh has a nice shape and looks quite modern. The 3D cubes pattern on top of the power bank adds to its aesthetics. The pattern is actually made out of small grooves, which offer the device a non-slip feature. Overall, in terms of looks, it’s a sleek power bank which you won’t be ashamed to use in public…on the contrary!

On the top side of the power bank, in the opposite corner of the Aukey logo, there are 4 LED battery indicators. The led lights represent the remaining battery in 25% increments. For more information about how to read these LED lights, click here.

Durability & construction

Overall, the Aukey 20000mAh has a sturdy built, the casing being made out of resistant, industrial-strength plastic. The circuitry is made using Silicone Nanowire technology which has three main benefits: it’s smaller, lighter, and has better connectivity. As a result, the power bank is more compact than average and it doesn’t heat up so much during use.

Another important aspect worth mentioning is that the Aukey 20000mAh comes backed up by a 24-month warranty. This is quite generous considering that the average portable charger only comes with a one-year warranty.


The Aukey 20000mAh power bank is quite slim and can easily fit in a pocket. Considering the capacity of this unit, it’s clear that Aukey has taken pains to keep the size down. It’s relatively light and a fair bit smaller than something like the RAVPower 20000mAh power bank.

Furthermore, it’s worth noting that at 20000mAh this is a power bank that you can easily take on your flights. According to the TSA, the maximum limit is 100Wh, and this Aukey is comfortable under that, at 74Wh. For more info, read this article.



Great size to power ratio

Excellent battery efficiency

Comes with PD and QC fast charging

It can charge 3 devices simultaneously

Sleek and good looking



Takes a long time to charge

Higher than average price

Final thoughts

The Aukey 20000mAh is an all-around solid power bank that you can depend on for daily use but also when traveling. It features PD fast charging and it comes with high tech Silicone Nanowire, making it truly a new generation power bank. The drawbacks of this device are the over-average price and charging time. Overall, this is a good buy that you’d not regret, but it’s not something you’d write home about. For alternatives, check out the power banks listed below.

Check price on Aukey.com

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