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GriffinReserve Power Bank 6000mAh

Small power bank
6000mAh

£15.99View retailers

Test score

Lowest available price

£15.99Amazon Marketplace UK

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The Griffin Reserve Power Bank 6000mAh has three output ports so can potentially charge multiple devices at the same time. But is the capacity as good as the manufacturer claims or will it leave you with a phone that’s not fully charged? Read our full review of this power bank to find out the truth.

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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

Oct 2022Last checked by Which?
Apr 2021First reviewed by Which?

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	Small power bank
Claimed capacity	6000mAh
Width	6.4cm
length	9.6cm
Height	2.2cm
Weight	185g

Features
Pass through charging	No
Power delivery	No
Wireless charging	No
Display type	4 LED indicators show battery power level
Accessories included	Short USB-A to USB-C lead

Power
Power bank charging time
No. smart phone charges possible	1.3
No. Tablet charges possible	0.8

Connections
Input 1	USB-C
Input 1 specs	5V, 2.4A
Output 1	USB-C
Output 1 specs	5V, 3A
Output 2	USB-A
Output 2 specs	5V, 1A
Output 3	USB-A
Output 3 specs	5V, 2.1A
Shared output	No
Max combined output	15W

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Amazon Marketplace UK
In Stock£15.99

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GriffinReserve Power Bank 6000mAh

Lowest available price