Hama20000mAh PD10-HD Portable Power Bank

Large power bank
20000mAh

£33Typical price

Test score

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The Hama PD10-HD 20000mAh is kitted out with ‘high-density cells’ that make it lightweight and ‘superior premium quality with respect to workmanship and performance’. At least, that’s according to Hama. We took it to the test lab to get to the facts. Read our expert review to see our verdict.

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What's included?

What is it?
How easy is it to use?
How well does it perform?
Should I buy it?

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KEY TEST RESULTS
Performance
Ease of use
Features

Apr 2024Last checked by Which?
Jun 2023First reviewed by Which?
May 2021Released

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

4 Jun 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	6.4cm
length	15.4cm
Height	2.4cm
Weight	361g

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

Power
Power bank charging time
No. smart phone charges possible	4.7192184497117
No. Tablet charges possible	2.385125947031

Connections
Input 1	Micro usb
Input 1 specs	5Vdc - 2A9Vdc - 2A
Input 2	Usb C
Input 2 specs	5Vdc - 3A9Vdc - 2A
Input 3	No
Input 3 specs	No
Output 1	USB C
Output 1 specs	5Vdc - 3A9Vdc - 2A12Vdc - 1,5A
Output 2	USB A
Output 2 specs	5Vdc - 2,4A9Vdc - 2A12Vdc - 1,5A
Output 3	USB A
Output 3 specs	5Vdc - 2,4A9Vdc - 2A12Vdc - 1,5A
Shared output	Yes
Max combined output	18W

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Hama20000mAh PD10-HD Portable Power Bank