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75 votes

Airline power sockets shut down when I plug my computer in. How can I avoid that?

Overcurrent isn't the only reason for an airline circuit to trip. It might also be looking for ground faults/residual current (GFCI/RCD) or listening for arc faults (AFCI). Any appliance can have ...
Harper - Reinstate Monica's user avatar
69 votes

Does a USB to UK socket adapter exist?

There is no such device because what you are proposing is impractical. Laptop chargers require between 100 and 240 volts alternating current input. (Some may require a more limited range). USB ...
DJClayworth's user avatar
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63 votes
Accepted

Can I use my laptop, which says 100-240V, in the USA?

The cord is marked with the maximal voltage the insulation between the wires in it is designed to withstand. It will transmit lower voltages just fine and not be harmed. It is also marked with the ...
hmakholm left over Monica's user avatar
61 votes
Accepted

Why is the bathroom's light switch outside the room in some countries?

Because CENELEC standards, which are in effect in most European countries, restrict which kind of electrical equipment can be installed in rooms with a bath tub or a shower. There are some minor ...
Tor-Einar Jarnbjo's user avatar
59 votes

Cooking inside a hotel room

The simple answer is, no, this won't be allowed in any normal hotel-hotel. Very simply, use holidayrentals.co.uk or airBnB.com to rent a "gite" instead. You'll save more money and it will be far more ...
Fattie's user avatar
  • 6,321
49 votes

Issues powering a US laptop in Europe, via an adapter

A breaker tripping is a serious sign of trouble. Something shorted or started to draw excessive current. If not for the breaker, it would probably have caught fire. (Or the circuit was already ...
Nate Eldredge's user avatar
49 votes

What are these holes for on this European travel adaptor?

Those circled holes will be for various plug style's grounds, however -- That is not a standard socket. That is entirely an invention of the Chinese junk sellers. It has not been approved by any ...
Harper - Reinstate Monica's user avatar
48 votes
Accepted

Is it safe to plug one travel adapter into another?

Yes, it's generally safe. Adapters don't have any active components, so assuming they're all rated for the voltage/amps you're putting through, there's little risk of overload etc like there is with ...
lambshaanxy's user avatar
  • 99.5k
47 votes
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What are these holes for on this European travel adaptor?

All the middle holes are there for accepting various types of ground (earth) pins. Specifically, the top two holes are there for British plugs (BS 546, BS 1363), while the bottom two are there for ...
lambshaanxy's user avatar
  • 99.5k
47 votes

Airline power sockets shut down when I plug my computer in. How can I avoid that?

If a socket says "100 W max", it doesn't mean, that your laptop would be drawing less. Your laptop/charger will draw what it needs. The socket will provide the power that your laptop needs, until it ...
dunni's user avatar
  • 9,059
43 votes

Airline power sockets shut down when I plug my computer in. How can I avoid that?

This alone explains it all: it also happens when I plug the charger alone without the laptop at the other end. Because of the way power supplies are constructed, they draw extremely short, but ...
Agent_L's user avatar
  • 784
41 votes

When traveling from the EU to the USA, what kind of power adapter am I going to need?

The first thing to do is check all your appliances. Check wether they are multi voltage. You will see that printed on them somewhere. I have yet to encounter a laptop or mobile phone charger that was ...
Krist van Besien's user avatar
35 votes

Charging a high powered laptop on aircraft power

Install Lenovo Vantage / Lenovo Commercial Vantage. That way you gain access to a setting 'Airplane Power Mode': I would also recommend you charge the laptop to 100% (in case you have the Battery ...
Anemoia's user avatar
  • 521
32 votes

Can power banks be recharged from both 120V and 240V?

All the devices you mentioned charge via USB, so really all you need to do is carry a USB wall adapter, that is compatible with USA / UK voltages. I carry with me a macbook pro lightbar 2016 wall ...
Burhan Khalid's user avatar
31 votes
Accepted

Converter vs Adapter

Am I correct that adapter mode would burn a US appliance, or am I wrong? Yes, you are correct. If used in "adapter" mode, the voltage is not adjusted or converted in any way, and in most cases a ...
bobflux's user avatar
  • 434
30 votes

Does a USB to UK socket adapter exist?

Laptops take too much power It's perfectly reasonable to think that would work. The problem is the laptop class of machines just take more power than readily available present-day USB plugs can ...
Harper - Reinstate Monica's user avatar
28 votes

Can I use my laptop, which says 100-240V, in the USA?

The ONLY relevant thing to check is the label on the power supply. It states "Input 100V-240V, 50/60Hz". Any outlet that provides voltage and frequencies in that range is safe to use. That covers ...
Hilmar's user avatar
  • 103k
26 votes

Issues powering a US laptop in Europe, via an adapter

It looks like your laptop is tripping the RCD rather than the regular circuit breaker: a device tripping the regular CB will simply start smoking if the CB doesn't trip, and your laptop seems to work ...
Dmitry Grigoryev's user avatar
25 votes
Accepted

Is it safe to plug a power strip into a travel adapter plug?

There are two types of travel adapter plugs commonly used: Plug adapters. These just convert the physical plug into one of a different shape, but do not perform any voltage conversion. It is ...
Zach Lipton's user avatar
  • 86.3k
25 votes
Accepted

What legal documents are Italian citizens supposed to carry when traveling to Ireland?

As an Italian citizen, what legal documents we are supposed to carry when we will be traveling to Ireland? Passport or national ID card (carta d'identità), provided it does not say non valida per l'...
Peter Green's user avatar
  • 11.3k
25 votes

Do I need an adapter for my (US-based) USB bricks for use in Japan?

Japan's power grid is a bit special, in that the eastern/western sides are 50Hz/60Hz respectively. If we're not talking about USB power bricks, then the frequency may matter (especially for motors) ...
Nelson's user avatar
  • 587
24 votes

Unable to charge HP NoteBook 840 G4 laptop while being overseas

There's nothing in your pictures that indicates that they shouldn't work on a European grid. I think you need to treat this exactly like any other instance of: My laptop and/or its power brick died ...
hmakholm left over Monica's user avatar
24 votes
Accepted

Power Adapter for Traveling to Scotland (I live in the US)

Almost certainly, each AC to DC converter you have will support both UK and US voltages, and you do not need a voltage converter. To be absolutely sure, look at the back of your laptop's charger and ...
Patricia Shanahan's user avatar
23 votes
Accepted

Why does this US to UK adapter not fit properly?

You need a different adapter. Your adapter will accept a standard US non-polarized two-prong plug, but will not — as you discovered — accept a polarized two-prong plug. Plug adapters are varied. I ...
DavidRecallsMonica's user avatar
23 votes

When traveling from the EU to the USA, what kind of power adapter am I going to need?

As others have said, almost all laptop and phone chargers will support 100-250V at 50 or 60Hz. They have switch mode power supplies, which for various technical reasons I won't go into, are very easy ...
Muzer's user avatar
  • 11.1k
22 votes
Accepted

Power converter that worked in Barcelona doesn't work in Rome - how to recover?

There may be something wrong with the adapter, or it may be something else. You can try and isolate the problem. The problem is either: A: The electric sockets in the hotel room. (This seems unlikely ...
Fiksdal's user avatar
  • 15.1k
22 votes
Accepted

What power supply is needed to use a CPAP machine in the EU?

The label gives input 100-240, V 50-60Hz, which covers the European countries as well as the USA. As such you only need a plug adapter, which only changes the shape of the plug but does not do ...
Willeke's user avatar
  • 61.1k

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