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Maplin Twin 3.1A USB Power Supply

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Quoting product code: N22NC


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About this product


  • High power USB adapter capable of charging tablets, smart phones, GPS and other USB devices
  • One 2.1A and one 1A socket to charge tablets, smartphones, handheld consoles, sat-navs and more
  • Charge your portable devices without being tied to your computer

Product overview

• High power USB adapter capable of charging tablets, smart phones, GPS and other USB devices
• One 2.1A and one 1A socket to charge tablets, smartphones, handheld consoles, sat-navs and more
• Charge your portable devices without being tied to your computer
• Lightweight and very portable

Rated 5 out of 5 by from I had been using a 500mA USB plug to charge my tablet and mobile juice pack and unsurprisingly it got very hot and eventually failed. It was then that I realised that for these devices which have a relatively high power demand you need a higher powered PSU. I purchased this which has a 2.1A and 1A output and have been using it successfully to charge an iPad (2.1A plug) and an iPad Mini (1 A plug) and this works very well, with the unit only getting warm to the touch as opposed to hot. So, I've learnt my lesson; USB plugs like any other PSUs have different ratings and it's important to use one that's suitable for the purpose. This does the job and I'm very pleased with it.
Date published: 2014-11-11
Rated 5 out of 5 by from My pet bug bear with USB chargers is that often they have multiple LEDs, lighting up the room at night. This one DOESN'T. So far it's functioned exactly as required, charging my iPad and Galaxy s3 simultaneously, with very little heat generated.
Date published: 2014-11-11
Rated 2 out of 5 by from Does not work as described on the box Packaging states it is 3.1A (amp) via 1 socket or 2.1A + 1.0A. It's not true it's a 2.1A + 1.0A. You can not obtain 3.1A from one socket from this unit
Date published: 2015-04-06
Rated 5 out of 5 by from Other reviewer USB spec can't handle 3a over a type A connection, why on earth would you want to do 3a?
Date published: 2016-02-24
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Input Voltage: AC 100 - 230V, 50Hz
Input Power Plug: UK
Output Voltage: DC 5V
Output Current: 3.1A max (2.1A + 1.0A)
Output Voltage Type: Fixed
Output Power (Max): 15.5W
Regulated Output: Yes
Reversible Polarity: No
Output Tips/Socket Type: USB A Socket
Number of USB Sockets: 2
Switched Mode Supply: Yes
Efficiency: >50%
Weight (including plugs): 92g

Is this suitable to power the usb desk fan A83RH?

Asked by: shona69
Yes, this will work fine.
Answered by: Dominic
Date published: 2017-06-18

Can I use an inverter to power this device. Inverter has over kW of power, but no other details are available so it may not be sine wave output

Asked by: canaltripper
This service is for frequently asked questions and does not allow two way communication, In order for us to best assist you with your technical issue please contact us on the details below: 0333 400 9500 or email
Answered by: Billy
Date published: 2016-10-08

Hi I bought this power supply to charge a hand-held Sega console. Could you please recommend whether to use the 2.1A or 1A socket to charge the console (or would both be perfectly suitable?), and how do I tell which socket is which? Thank you!

Asked by: Paula
As Technical Support Advisors we cannot offer full advice on mains electrical installations, this job would be best left down to the professionals, if you are at all unsure we would strongly recommend consulting a qualified electrician for help and support or to complete the job for you.
Answered by: Dominic
Date published: 2016-05-31

Hi Does this support - USB power adapter rated 5V with a minimum output current if 750mA?

Asked by: Kumzee
It supports standard USB voltage (5v) from 0 to 3.1 amp total load.
Answered by: Les
Date published: 2016-05-24

Hi, Would this plug be suitable as a power supply for my 2W LED light? It's a USB cable, DC 5V. Thanks 

Asked by: AngelaP
As long as the connection is USB and the power requirements are 5V at no more than 2.1A this should be fine.
Answered by: Gareth
Date published: 2016-05-18

Hi, we run a business from home and take about one card transactions per day. Maplins sold me the 3.1A twin usb power charger. I was told I should use the 2.1A slot for the Izettle card reader and 1A for our iPad. Is this correct? Thanks

Asked by: RoseNV
This would be the other way round. The iPad would use the 2.1A slot. And the Izettle would use the 1A slot.
Answered by: Darren
Date published: 2015-12-18

I bought one in-store and the packaging says "The power is distributed as 3.1A from one socket or 2.1A and 1.0A". Please would you confirm 3.1A from one? When got home I found the unit itself says 2.1A on one socket and 1.0A on the other. Confusing.

Asked by: TomH
From checking it seems the ports are handed, meaning the left port is the 2.1 and the right is the 1 amp, if your nokia says slow charger, try using the other port.
Answered by: Russell
Date published: 2015-10-21

Hi. Just bought this today. Can either the 2.1A or the 1A socket be used for charging any devices. Is it simply that the 2.1A will charge faster? (I'm not very knowledgeable on electrical matters).

Asked by: May67
Yes that's correct but some devices will not charge off a 1A port.
Answered by: Dominic
Date published: 2015-07-17
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