MASTERPLUG Surge Protected Plug Adapter with USB at Currys for £5.99
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MASTERPLUG Surge Protected Plug Adapter with USB at Currys for £5.99

25
Found 22nd Apr
The Masterplug Surge Protected Plug Adapter with USB lets you charge your media devices without using up a plug socket.

USB charging

Charge up your smartphones, tablets, MP3 players and digital cameras with the Surge ProtectedAdapter which lets you share a 2.1 A charge across two USB ports.

Suitable for use with a range of USB compatible devices, the Surge ProtectedAdapter includes automatic protection to prevent the connected device being overloaded. Power and surge indicators on the plug show you when the socket is live so you can be assured that you're protected.

Preventing any small objects being pushed into the sockets, the Masterplug Adapter with USB has a child-resistant design with shuttered sockets.

Featuring a switched socket so that you can control power easily, the Masterplug Plug Adapter with USB stays on low energy standby mode when not in use.

Technical specifications for MASTERPLUG Surge Protected Plug Adapter with USB
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25 Comments
A better solution than the integrated sockets sometimes posted here. The house wiring doesn't need to be disturbed. If something goes wrong with the adapter, then it can easily be removed. Quite slim
Be aware these have a bright LED that is always on whilst in use. I found it too bright to use in my bedroom at night. A good product though.
JESUS!43 m ago

Be aware these have a bright LED that is always on whilst in use. I found …Be aware these have a bright LED that is always on whilst in use. I found it too bright to use in my bedroom at night. A good product though.



Cover with tape?
not available for delivery and none available to collect.
jasee3 h, 0 m ago

A better solution than the integrated sockets sometimes posted here. The …A better solution than the integrated sockets sometimes posted here. The house wiring doesn't need to be disturbed. If something goes wrong with the adapter, then it can easily be removed. Quite slim



Integrated sockets are terrible.
Better buying a propery USB power supply that can output over 2A to each USB socket. The Polaroid one from ASDA is decent.
Great - I was looking for something neat to free up the usb on the tele.
Is this actually available at any store? I think it should be expired.
jasee1 h, 23 m ago

Cover with tape?


That's what I often do, use black electrical tape
The other problem with this unit in the bedroom as the definite buzz from the electronics. That and the light meant it was relegated to another room, but today I wouldn't buy it as each socket is not delivering 2.1a
Edited by: "Sid.Harper" 22nd Apr
mccririck59 m ago

Better buying a propery USB power supply that can output over 2A to each …Better buying a propery USB power supply that can output over 2A to each USB socket. The Polaroid one from ASDA is decent.


Depends, some people (like myself) prefer to charge at a lower current for a longer period of time!
This is far better for the battery cells and will help maintain their capacity and increase their life expectancy, which is a good idea these days considering cells are now nearly always none user accessible and a PITA to replace!

Fast chargers / High charge currents are great for the odd emergency or when you've messed up and forgotten to charge over-night but using them all the time to charge your devices is a sure way to significantly reduce capacity and life expectancy !!
Leftfield_2k22 h, 4 m ago

Depends, some people (like myself) prefer to charge at a lower current for …Depends, some people (like myself) prefer to charge at a lower current for a longer period of time!This is far better for the battery cells and will help maintain their capacity and increase their life expectancy, which is a good idea these days considering cells are now nearly always none user accessible and a PITA to replace!Fast chargers / High charge currents are great for the odd emergency or when you've messed up and forgotten to charge over-night but using them all the time to charge your devices is a sure way to significantly reduce capacity and life expectancy !!



Can you provide any evidence that charging an iPad with 1A will make the batter last longer than charging it with 2A?
Leftfield_2k22 h, 39 m ago

Depends, some people (like myself) prefer to charge at a lower current for …Depends, some people (like myself) prefer to charge at a lower current for a longer period of time!This is far better for the battery cells and will help maintain their capacity and increase their life expectancy, which is a good idea these days considering cells are now nearly always none user accessible and a PITA to replace!Fast chargers / High charge currents are great for the odd emergency or when you've messed up and forgotten to charge over-night but using them all the time to charge your devices is a sure way to significantly reduce capacity and life expectancy !!



Is there any evidence to this? Because I had a similar idea so recently I stopped using fast charge and leaving my devices charge overnight with slow chargers!
I’m pretty sure this low amp charging argument is utter hoop. The device will only draw the current it requires.
Plenty of evidence if you do the research, basic cell chemistry!
Also you might have noticed that whenever you fast charge a device it gets significantly hotter than when it is trickle/slow charged.
This extra heat is detrimental to both the cell that it's emanating from and also damaging over time to the components around it within the device.

As stated they are great to get you out of a bind and the occasional use, however chucking a phone on a high current/fast charger overnight is utter madness considering you have more than enough time to gently trickle charge it before the morning

''charliemike3 m ago I’m pretty sure this low amp charging argument is utter hoop. The device will only draw the current it requires.''

It's basic chemistry and pretty much common sense to anyone who has the slightest understanding of either electronics or chemical reactions!

Also if you think it's ''utter hoop' you had better get in contact with the EV department of Nissan as they also seem to think fast charging cells regularly causes degradation!!
Edited by: "Leftfield_2k2" 22nd Apr
Leftfield_2k23 h, 51 m ago

Depends, some people (like myself) prefer to charge at a lower current for …Depends, some people (like myself) prefer to charge at a lower current for a longer period of time!This is far better for the battery cells and will help maintain their capacity and increase their life expectancy, which is a good idea these days considering cells are now nearly always none user accessible and a PITA to replace!Fast chargers / High charge currents are great for the odd emergency or when you've messed up and forgotten to charge over-night but using them all the time to charge your devices is a sure way to significantly reduce capacity and life expectancy !!


agreed

well documented that fast charging reduces battery life across all battery types
I've got 4 of these when they were being sold off in Sainsbury's a couple of years ago - the USB ports don't charge anything, the voltage from them is between 0 and 3v - maybe that's why they were cheap?
Great. Buy no stock
jhw48 m ago

I've got 4 of these when they were being sold off in Sainsbury's a couple …I've got 4 of these when they were being sold off in Sainsbury's a couple of years ago - the USB ports don't charge anything, the voltage from them is between 0 and 3v - maybe that's why they were cheap?


Whereas the two I've owned also picking up also from Sainsburys some years ago charge things just fine.
Edited by: "Sid.Harper" 22nd Apr
robodan9186 h, 19 m ago

agreedwell documented that fast charging reduces battery life across all …agreedwell documented that fast charging reduces battery life across all battery types



Depends what you mean by fast charging. Would allowing the device to draw 2A rather than being restricted to 1A by the power supply be considered fast charging?
Should be expired.
Bought one of these in black from Amazon twice the price last week
mccririck5 h, 9 m ago

Depends what you mean by fast charging. Would allowing the device to draw …Depends what you mean by fast charging. Would allowing the device to draw 2A rather than being restricted to 1A by the power supply be considered fast charging?



Maybe not fast but it is obviously a 100% increase. To be honest if you're going to put you phone onto charge for 6 hours while you sleep it could be argued that a 0.5A charger would be best.

I think everyone knows by now that batteries last longest when they're not charged/discharged to extremes. I think the advice these days is to go for top up charges to try and keep your phone between 40 and 70%. So when your phone reaches 100% charge over night and then stays there is causes significant battery wear. So a 0.5A charger would mean your phone would take longer to reach 100% and therefore have less time there before you wake up.

Or just get a new phone year in year out.
Sid.Harper22nd Apr

Whereas the two I've owned also picking up also from Sainsburys some years …Whereas the two I've owned also picking up also from Sainsburys some years ago charge things just fine.



Suppose I got a bad batch
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