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Anker525 Power Bank PowerCore Essential 20K

Large power bank
20000mAh

£49.99View retailers

Test score

Lowest available price

£49.99Amazon Marketplace UK

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The Anker 525 PowerCore Essential 20000 power bank has twin outputs so you can potentially charge two devices at the same time. But is the large capacity as good as the manufacturer claims, or will it leave you with a phone that’s not fully charged? These and many other questions are answered by the stringent Which? test programme. Read our full review to find out the truth.

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cons

What's included?

What is it?
What’s it like to use?
How well does it perform?
Is there anything else I should know?
Should I buy it?

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KEY TEST RESULTS
Performance
Ease of use
Features

Feb 2024Last checked by Which?
Dec 2022First reviewed by Which?
Nov 2022Released

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

How we test portable power bank chargers

5 Mar 2024

Performance

Overall
Capacity - actual v claimed
Efficiency
Power bank charging time
Device charging time

How we test performance

How long does the power bank take to charge? How quickly will it charge your devices? And does it deliver on the amount of power that the manufacturer says it will?

Ease of use

Overall
Portability
Capacity and charging indicators
Sockets

How we test ease of use

Are the sockets well marked and far enough apart? Does the capacity indicator work properly? And how easy is it to carry around? We weight these results so that portability is more important in small power banks, and less important in large power banks

Features

How we test features

How many outputs does it have? Does it have any special features that let it charge faster? Does it have wireless? Can you charge this power bank and your devices at the same time?

General
Type	Large power bank
Claimed capacity	20000mAh
Width	7.4cm
length	15.6cm
Height	2cm
Weight	356g

Features
Pass through charging	No
Power delivery	No
Wireless charging	No
Display type	4 LED indicators show battery power level
Accessories included	USB A to USB C cable x1, USB C to USB C cable x1

Power
Power bank charging time
No. smart phone charges possible	4.5569022313382
No. Tablet charges possible	2.3460369268183

Connections
Input 1	Usb C
Input 1 specs	5Vdc - 3A9Vdc - 2A15Vdc - 1,2A
Input 2	No
Input 2 specs	No
Input 3	No
Input 3 specs	No
Output 1	USB A
Output 1 specs	5-6Vdc - 3A6-9Vdc - 2A9-12Vdc - 1,5A
Output 2	USB C
Output 2 specs	5Vdc - 3A9Vdc - 2,22A
Output 3	No
Output 3 specs	No
Shared output	Yes
Max combined output	5Vdc - 3A - 15W

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Amazon Marketplace UK
In Stock£49.99

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Anker525 Power Bank PowerCore Essential 20K

Lowest available price