Sao Tome power adapters - what plugs are used in Sao Tome?

Sao Tome power outlet

What adapter do I need for Sao Tome?

Bring a Type F plug adapter [3] to Sao Tome if the plug you need to use won't fit in a Sao Tome power outlet.

The type of plug adapter, power converter or charger that's needed when visiting Sao Tome will all depend on the voltage and type of device that you're attempting to power with a Sao Tome power outlet. If you don't know what voltage your device uses then read the section below on how to find out the voltage of your device before going any further.

  • Expect limited access to power in certain areas of Sao Tome, it is advised to bring a portable charger [4] if you need to keep your mobile phone charged whilst in a region with no power.
  • If you're planning on visiting Sao Tome from America you will need to bring a suitable power adapter to fit a US plug in a Sao Tome power outlet. As the voltage is different in Sao Tome you also need to pack a power converter for Sao Tome if your device isn't dual voltage and check that it can work with a 50hz power outlet.
  • If your device is 220 volts or is dual voltage and the plug fits in a Sao Tome power outlet then it should work in Sao Tome.
  • If your device can run on 220 volts or is dual voltage but the plug doesn't fit in a Sao Tome power outlet you will need to bring a suitable plug adapter for Sao Tome such a Type F plug adapter [3]. A plug adapter for Sao Tome (or power adapter) changes the actual shape of the plug on your device to fit into a plug outlet found in Sao Tome, but can't change the voltage from 220 volts to a different voltage.
  • If your device can't run on 220 volts and isn't dual voltage then you will also need a power converter for Sao Tome to convert the voltage from 220 volts to the correct voltage for your device. You will still need to use a suitable plug adapter for Sao Tome if the power converter doesn't have the correct Type F plug adapter.
  • If you simply need to power one or more USB devices such as tablets or cell phones then a USB travel power adapter is suitable and it should be dual voltage, but ensure that you bring a USB travel adapter which includes a Type F plug adapter otherwise you will still need to bring a suitable plug adapter for Sao Tome.

Warning: If your device won't handle 220 volts you run the potential risk of an electrical fire hazard, a blown fuse or damage to your device. Prior to using your device in Sao Tome please check the instruction manual to ensure safe operation.

Sao Tome power adapters

Power adapters for Sao Tome

Complicated standards and plugs can all be daunting when planning on staying in a foreign country especially if you've never visited before. With only a handful of different types of plug sockets being used in the world this guide tells you exactly what you'll need in advance to power your electronics in Sao Tome. This page contains links to useful instructions which shows exactly how to supply power to your devices when you are travelling to Sao Tome by using the Type F or C Sao Tome 220 volt 50Hz plug outlets. You will find power adapters will change regionally therefore please read our WikiConnections travel power adapters list where you'll find a complete list showing charging devices in different destinations.

What is the best power adapter for Sao Tome?

The best power adapter for Sao Tome is a Type F plug adapter [3] which allows you to use any 220 volt appliance or device.

What is the best power adapter for Sao Tome?

What is a power adapter?

Power adapters are compact and lightweight plastic adapters that permit a wall outlet in Sao Tome to accept a power plug from an appliance from a different region.

Can a power adapter change the voltage in Sao Tome?

Power adapters will only adapt the shape of a plug to fit into a 220 volt Sao Tome power outlet and doesn't convert the power to a different voltage. If you need to safely use any 100, 110 or 120 volt appliance then you will also need a step down power converter for Sao Tome.

Do I need a power adapter in Sao Tome?

If the power plug that you are using isn't the same as the type of plug outlet in Sao Tome then you will need a power adapter.

Will I need a plug adapter for Sao Tome if I'm from the US?

If you are visiting from the US bring a plug adapter for Sao Tome as an American plug won't physically fit into a Sao Tome power outlet, and because the voltage is much higher you will also need to use a power converter for Sao Tome if your charger or appliance isn't dual voltage to prevent overheating or damage.

What does a power adapter do?

A power adapter for Sao Tome allows visitors travelling from another country to use electronic appliances in Sao Tome by adapting the shape of the power plug from one type to another.

Electrical adapters for Sao Tome

Travel USB Wall Chargers

A USB travel charger with swappable heads

Travel USB Wall Chargers

Benefits of a travel USB wall charger

  • Perfect if you only have to charge devices which use USB.
  • You only have to bring a single unit instead of packing lots of domestic USB power chargers costing around $18 USD.
  • Supplied with swappable adapter heads making them versatile in a large number of countries. The interchangeable adapter heads supplied with USB wall chargers are usually small and lightweight making them easy to fit into hand luggage.
  • Offers surge protector built in.
  • When you get back to America the charger will still be useful.
  • The swappable heads will fit in Types A/B, E/F, G and I outlets so will work in a Sao Tome power outlet.

Disadvantages of a travel USB wall charger

  • Because it only has USB outputs you won't be able to charge electrical appliances, just USB ones.
Travel Power Strips

A power strip with multiple USB ports

Travel Power Strips

Benefits of a travel power strip

  • Capable of powering several electical appliances at once via a single plug socket, costing on average $30 USD.
  • Some types of travel power strips have voltage conversation for lower wattage devices (for example laptops). Even if the appliance isn't dual voltage it will still function in Sao Tome by using just a travel power strip, making them a lightweight and cheap alternative to a dedicated voltage converter.
  • Normal models will also include multiple USB charge ports.
  • Offers surge protection. The voltage from power grids in certain areas can be tempremental, a sudden power surge can damage your delicate electrical items. Some power strips will include a surge protector which will prevent your device from being overpowered by an unstable power grid.
  • When you return to America it should still work.
  • US and Canadian power strips include Type A, B, D, E/F, G, H, I, L and N plug adapters so should work in Sao Tome. (Note: UK power strips include type B, F, G and I plug adapters so you will need to use it with an additional plug adapter.)

Disadvantages of a travel power strip

  • Unlike normal voltage converters, the voltage converter on a travel power strip doesn't convert higher wattage appliances such as hair dryers or curling irons.
  • Because of their size travel power strips might be unsuitable for hand luggage.
  • Travel power strips could be considered excessive for travellers with only a small number of items that need powering.
Universal Travel Power Adapters

Universal adapters work in over 150 countries

Universal Travel Power Adapters

Benefits of a universal travel power adapter

  • Perfect when travelling to multiple countries. Most models function in around 150 countries.
  • All in one compact design. Both lightweight and small, around $15 USD.
  • There are some universal travel adapters that include multiple charging ports for USB electronics built in.
  • Relatively straightforward operation.
  • There are some universal travel power adapters which have a surge protector built in which will protect any electronics from being overloaded by unstable power grids.
  • The pins retract so don't get caught against other items when packed in luggage.
  • The universal travel power adapter should still be of use domestically as a USB charger.
  • Changes shape to Types A/B, E/F, G and I plugs so will fit in a Sao Tome power outlet.

Disadvantages of a universal travel power adapter

  • A universal travel adapter will overload when used with high powered electrical appliances; for example clothes irons, hair straighteners, kettles, curling irons or hair dryers.
  • The internal moving parts such as pins and shutters might be fragile on some models which could make them prone to failure on your trip.
  • Can only charge a single plug.
  • A universal travel power adapter might not be fully universal - adapters might not work in some countries with less common power outlets.
  • Lacking a built in voltage converter means it won't be suitable for non-220 volts devices.
Power Plug Adapters

A small and lightweight type F plug adapter

Power Plug Adapters

Benefits of a power plug adapter

  • Affordable, with prices starting at around $7 USD.
  • Straightforward design makes this plug adapter simple to use.
  • Using a Type F plug adapter [3] will work in Sao Tome.
  • Small and light.

Disadvantages of a power plug adapter

  • One plug adapter per device - for every appliance you will also need to bring a separate power adapter.
  • Adapter only changes the shape of the plug to fit in a Type F Sao Tome power outlet and doesn't change the voltage, so if your appliance doesn't support 220 volts and isn't dual voltage you'll also need to pack a voltage converter.
  • If you intend on travelling to more than just Sao Tome then you might need to pack multiple plug adapter types for other countries.
  • You'll also need to pack a separate USB charger if you wish to power a USB device.
  • Some hotel rooms in Sao Tome might only have one power outlet available, so you will only be able to power a single appliance at a time.
Plug Adapter Sets

A plug adapter set

Plug Adapter Sets

Benefits of a plug adapter set

  • With prices between $15-$20 USD an adapter set typically works out more cost-effective purchasing than buying multiple $7 plug adapters.
  • By bringing every type of plug adapter ensures that you are covered for all countries.
  • For travellers visiting multiple countries this is ideal.
  • Includes Type A, B, C, D, E/F, G, H, I, J, L, M and N adapters so should be compatible with a Sao Tome power outlet.

Disadvantages of a plug adapter set

  • Will involve some planning; prior to any trip you will need to decide which plug adapters they'll need, if you don't know every country you'll be visiting you'll need to bring each adapter type along.
  • Lots individual adapters to pack.
  • The remaining power adapters will be useless using up packing space.
  • Not all plug adapter types are typically included (especially rarer adapters), so check that your set has an adapter that works with a Sao Tome power outlet.
  • Each plug adapter only modifies the actual shape of the plug and don't modify the actual voltage.
Voltage Converters

Voltage converters have surge protection

Voltage Converters

Benefits of a voltage converter

Disadvantages of a voltage converter

  • It only changes the 220 volts in Sao Tome and not the actual shape of the plug to slot in a Sao Tome power outlet, you will still be required to pack the right type of plug adapter.
  • The normal size and weight of most models of voltage converters makes them impractical for hand baggage.
  • Useless when you return from Sao Tome.
  • Often less expensive and more practical to purchase a dual voltage travel appliance than to purchase an expensive voltage converter just in order to power your existing appliance abroad.
  • Costly - on average $128 USD.
  • When you travel to Sao Tome from the US then you will need a power converter as the voltage from a Sao Tome power outlet is 220 volts.

Comparison of electrical adapters for Sao Tome

Type F Power Plug Adapter
Power Plug Adapter
Universal Travel Power Adapter
Universal Travel Power Adapter
Travel USB Wall Charger
Travel USB Wall Charger
Travel Power Strip
Travel Power Strip
Plug Adapter Set
Plug Adapter Set
Voltage Converter
Voltage Converter
Can be used in Sao Tome Yes Yes Yes Yes Yes Yes
Types of plug included F A/B, E/F, G and I A/B, E/F, G and I A, B, D, E/F, G, H, I, L and N A, B, C, D, E/F, G, H, I, J, L, M and N B
Compatible number of countries (A) 70+ 150+ 150+ 200+ 230+ 230+
Fits in a Type F Sao Tome power outlet Yes Yes Yes Yes Yes
Additional Type F plug adapter required to fit in a Sao Tome power outlet Yes
Useful when you return to America Yes Yes Yes
Typical combined number of USB ports and AC outlets 1 3 4 7 1 2
Powers USB devices Yes Yes Yes
Typical number of USB ports 0 2 4 4 0 0
Powers a 220 volt AC appliance in Sao Tome Yes Yes Yes Yes Yes
Typical number of AC outlets 1 1 0 3 (B) 2
Converts voltage (?) Yes (C) Yes
Surge protection Yes Yes Yes Yes
Typical dimensions 2.6 x 1.9 x 1.4 inches 3 x 2.1 x 2.1 inches 4.3 x 3.4 x 1.3 inches 6.6 x 3.6 x 1.5 inches 7.1 x 3.9 x 2.8 inches 11.7 x 8.1 x 6.7 inches
Typical weight 4.5 ounces 4 ounces 4.5 ounces 1.6 pounds 13 ounces 20 pounds
Typical number of items to carry (D) 1 1 5 8 12 2
Suitable for hand luggage Yes Yes Yes • (E) • (F)
Typical price $7 USD $15 USD $18 USD $30 USD $19 USD $128 USD
Buy Buy Buy Buy Buy Buy

Sao Tome power outlets and plug sockets

What plug sockets are used in Sao Tome?

Type C and F power outlets

What plug sockets are used in Sao Tome?

There are two different types of power supply used in Sao Tome, types F and C with the primary power outlets being type F:

  • Plug Type C - You can recognise this power socket by two circular adjacent holes next to each other where the pins go.
  • Plug Type F - The recessed round wall socket, technically called a type F power outlet, can be recognised by two 4.8mm holes 19 mm adjacent to each other where the two pins go along with two thin grounding clips above and below.

Do US plugs work in Sao Tome?

No - an American plug won't work in Sao Tome because it doesn't fit in a Sao Tome power outlet without using a power adapter. Also, the voltage is 220 volts so you will need to use a power converter for Sao Tome if your appliance or charger isn't dual voltage and check that your device or appliance will work with a 50hz power outlet.

Is the voltage in Sao Tome the same as in the US?

The voltage which comes from a Sao Tome power outlet is 220 volts, whereas 120 volts is used in America. If your US appliance or charger isn't dual voltage then you should use a suitable power converter for a Sao Tome power outlet which allows a 120 volt American device to work with a 220 volt outlet.

Are outlets in Sao Tome the same as US?

US plugs won't fit in a Sao Tome power outlet so you will need to bring a power adapter for Sao Tome. Both the voltage and frequency are different so if your charger or appliance isn't dual voltage please use a power converter for Sao Tome and check that it works with a 50hz supply.

How do I use a 110 volt appliance in Sao Tome?

To use a 110 volt appliance in Sao Tome you will need a step down power converter.

What frequency is used in Sao Tome?

The frequency of the alternating current from a Sao Tome power outlet is 50 Hz.

What proportion of Sao Tome has access to electrical power?

More than a quarter of the population has access to electrical power in Sao Tome.

How reliable is the power grid in Sao Tome?

Whilst stable electrical power can't be guaranteed, the power grid in Sao Tome is classed as reliable with no pattern of recurrent power blackouts.

Should I use a power bank in Sao Tome?

USB power bank for charging mobile phones

Should I use a power bank in Sao Tome?

Because not everyone in Sao Tome has access to power visitors should check ahead that their accomodation can guarantee a dependable power supply, or bring a second charging solution if they want to recharge devices such as cellphones.

  • During a trip to Sao Tome increased use of smart phones for taking pictures, storing calendars, social networks, GPS and streaming videos can syphon off power more excessively than normal. A flat cell phone battery could possibly leave you in an unknown location without enough power to make emergency calls or being able to use a GPS app to return to your accommodation.
  • Using a portable charger [4] in Sao Tome alleviates those concerns as it allows you to keep your cell phone powered on the move, especially when travelling to a country with limited access to power in some areas.
  • A typical 10,000mAh power bank [4] will supply enough energy to cover over three full charges whilst a 20,000mAh power bank [14] should keep a typical smart phone charged for almost 7 days depending on the model of phone and usage.
  • If you need to charge your laptop in Sao Tome and it it supports USB-C charging then look for a portable charger for a laptop [15] marked with PD (power delivery) which supplies 20 Wh or more.
  • Before travelling be aware that some airlines prohibit batteries on an aircraft that supply 100 Wh of power or more and must not be left in checked-in luggage.
  • Normal consumer power banks won't work with high wattage items, but a rechargeable hair dryer [12] or gas hair straighteners [13] can be used for travelling to areas with limited access to electricity like Sao Tome.
How well do solar powered chargers work in Sao Tome?

Solar backpacks are ideal in hot conditions

How well do solar powered chargers work in Sao Tome?

The sunshine in Sao Tome should be suitable enough to recharge solar power bank [17] reliability, but will need to be exposed to strong sunshine to provide adequate power for a single charge cycle. It could prove inconvenient to continually unpack a solar power bank then wait whilst it recharges in sunny spells.

  • The bigger durable panels used on a solar backpack [16] give the bag the ability to create more electricity within a faster period of time, making them ideal for the weather in Sao Tome.
  • A phone that has been directly plugged into a USB port of a solar backpack can trickle charge the power during sunny spells in Sao Tome, but this might be inconvenient to have a phone continuously connected in the bag during the day if it is to be used constantly. Unlike a small solar power bank which needs to be unpacked and facing the sunlight, a solar bag is usually exposed to sunlight therefore will be topping up a regular power bank [4] during the day.
  • Even though the sunlight in Sao Tome is strong, a bag should ideally have a solar cell efficiency of 22% or more, be able to generate at least 6 watts of power and be used with a compatible power bank of 10,000mAH or greater.
  • The durable and flexible solar cells used in solar powered bags are designed to endure bending and scratches, unlike normal firm solar cells. Solar bags come in backpack, laptop messenger and rucksack styles which makes them perfect for work, travel and domestic use.

Sources

  • International Electrotechnical Commission - World plugs by location (cited August 2014)
  • Wikipedia - Mains electricity by country (cited July 2014)
  • Index Mundi - Power outages in a typical month (cited May 2018, data collected between 2006 to 2017)
  • Index Mundi - Access to electricity (cited May 2018, latest data collected 2010)
  • WikiPedia - List of countries by average yearly temperature (cited May 2018, data averaged between 1961 to 1990)

Sao Tome chargers

What is a USB travel power charger?

A USB travel charger is a dual voltage charger with interchangeable plugs and multiple USB ports, suitable for charging multiple USB powered devices when travelling abroad.

What USB charger do I need for Sao Tome?

If you are travelling to more than one country then the best international travel charger for Sao Tome to buy is a multiple USB charger which includes compatible plugs such as a 4 port USB travel charger [6]. There are two types of power outlets in Sao Tome (types F and C) and bringing this ensures that you are covered for type C. As these types of chargers are supplied with interchangeable pins and can handle from 100 - 240 volts will mean that you can travel to multiple countries in Europe, Asia, North America and Africa simply by switching the included heads. If your type of device can support Fast Charge then you will benefit from much faster charging times with one of these types of USB power chargers, and support for more power hungry devices.

Unlike other travel chargers this means you can recharge multiple devices at once without needing to buy multiple power chargers. By only packing a single international travel charger will help keep the overall size and weight down, making it perfect to fold up and store in hand luggage and convenient for charging your devices at the airport or on a flight. Because of their flexibility these types of power chargers can be used when back at home as well as abroad so when you're not on holiday they can sit under your bedside table charging multiple phones and tablets using just a single plug socket.

We recommend searching for a multipurpose power adapter of this nature online. The travel adapter illustrated is the 4 Port USB Wall Charger [6] which has been successfully tested with multiple USB devices in numerous different countries around the world.

What USB charger do I need for Sao Tome?

Why use a travel USB charger for Sao Tome?

  • Normal travel USB chargers include 4 or more USB charger ports, meaning you now only need to bring a single charger to charge all your devices. Rather than bring 4 individual power chargers you only need to pack a single 4 port USB wall charger and power up to 4 separate devices, thereby reducing the weight and size of your baggage.
  • Travel USB chargers should include swappable plug heads for various countries thereby making them suitable if visiting other countries across Africa which are likely to use different outlets to Sao Tome.
  • A good power charger is rugged, lightweight and compact - ideal for the rigors of travel instead of than risking bringing a domestic charger which could be hard to repair in Sao Tome.
  • USB travel chargers can accept the 220 volt power outlets in Sao Tome along with other voltage standards across the world.
  • It's possible that hotels in Sao Tome might only have a single power outlet, by bringing a travel charger with multiple USB ports means you can share out the single wall outlet with all your devices rather than having to wait to recharge one device at a time.
  • Because of their flexible nature a travel USB charger takes the uncertainty out of travelling to an unknown country as they are guaranteed to work almost anywhere in the world.
  • Power outlets in airports can be in short supply and the demand for charging multiple cell phones before a flight can be high, therefore a USB travel charger with multiple ports and the ability to charge quickly is perect.
  • The power grid in some countries can be unstable, a travel USB charger allows for unexpected spikes to prevent damage to any devices attached to it. Trying to repair an overloaded smartphone or tablet in Sao Tome could prove problematic and costly.
  • Larger USB chargers should also include power outlet strips to use multiple low powered devices such as laptops, but please note these are unsuitable for high powered domestic such as hair dryers or clothes irons. Refer to our guide on using travel appliances with a Sao Tome power outlet for advice and guidelines on the most suitable power adapter for a Sao Tome power outlet for high wattage appliances.
  • Certain tablets and cellphones could require more than the standard 500 milliamps produced from a standard 5 volt USB adapter to charge or provide fast charge. Premium USB chargers will support fast charging should any of your devices require additional power.
  • When back at home travel USB chargers can still be used by charging multiple cell phones on an overnight basis using one power outlet.

What is the best USB charger for Sao Tome?

The is the most compact option for travellers from any country who only have USB devices, however for visitors also wanting to use their domestic plugs the following power converters provide larger but more versatile solutions. All three power converters offer surge protection which can be useful for travellers to counties with unreliable or unstable power grids to prevent damage to any connected devices from voltage spikes. These travel converters come supplied with interchangeable type C, I and G plugs covering both Sao Tome and over 150 countries around the world:

  • BESTEK Portable International Travel Voltage Converter - The BESTEK international travel converter has 4 USB charging ports with 3 AC power outlets and is the best selling portable option for travellers originating from America visiting Sao Tome.
  • ORICO Traveling Outlet Surge Protector Power Strip - Similarly having 4 USB ports but only 2 AC power outlets the travel adapter from Orico is also aimed at travellers originating from the US using type B plugs and offers almost the same functionality as the BESTEK with 1 less AC outlet at almost half price.
  • BESTEK International USB Travel Power Strip - This power strip has just 2 AC outlets but offers 5 USB charging ports. This versatile power strip is compatible with both American plugs and popular plug types A, D,E/F, G, H, I, L and N making it perfect for a wide range of travellers from around the world visiting Sao Tome.

Power converters for Sao Tome

What does a power converter for a Sao Tome power outlet do?

Power converters for Sao Tome allow you to use a 100, 110 or 120 volt electric device with a 220 volt Sao Tome power outlet.

Also known as: electrical converter, electrical transformer, voltage converter, power transformer or voltage transformer.

What is the difference between a power converter and a plug adapter?

A heavy and bulky power converter [18] will transform a 220 volt Sao Tome power outlet to work with a non-220 volt device, but a more lightweight and smaller power adapter (or plug adapter) changes the shape of the plug on your device to fit into a power outlet in Sao Tome.

Do I need a power converter for Sao Tome?

When travelling to Sao Tome from another region check that the device will accept a 220 volt power supply.

  • You will need a step down power converter [10] if you are travelling from a country that uses 100-120 volts and your device or appliance won't support 220 volts. See the WikiConnections list of world power outlets guide to find out the voltage your country uses.
  • You won't need a power converter if you already use either a 220 volt single voltage device or one that supports dual voltage.
  • Devices designed for a lower voltage such as 110 volts and used with 220 volts run the potential risk of an electrical fire hazard, blowing a fuse or damage to your device.
  • You shouldn't need a power converter if you need to charge a smaller electrical device such as a mobile phone as these are normally dual voltage and designed for international use, but please always check the device for dual voltage support first.
  • For supplying power to high wattage appliances or generate heat (such as hair straighteners or clothes irons) then you will need to use a bulkier higher wattage heavy duty power converter [19] which allows it to be used with a 220 volt Sao Tome power outlet.
  • It should be more cost effective to use a smaller robust dual voltage travel appliance than bringing a heavier power converter to Sao Tome in order to use your existing domestic appliance.
  • For more information read our travel guides on how to use clothes irons, curling wands, flat irons and hairdryers with Sao Tome power outlets , along with recommendations for affordable dual voltage alternatives.

Do I need a power converter if I'm travelling to Sao Tome from America?

The voltage from a wall outlet in Sao Tome is different to an 110 volt American outlet, therefore please use a step down power converter if your appliance or charger doesn't support dual voltage.

What converter do I need for Sao Tome?

In order to use any 100-120 volt appliance in Sao Tome you will need to buy a step down power converter [10].

What is the difference between a power converter and a transformer?

Voltage converter

What is the difference between a power converter and a transformer?

Converters and transformers are both used to change one voltage to another, but this ambiguity can cause confusion as their purposes are different:

  • Power converters are designed for simple electrical appliances which typically generate heat or use motors such as clothes irons, shavers or hair dryers. Transformers are designed for more complex electronic items such as televisions or games consoles.
  • Buying a power converter is cheaper than buying a power transformer.
  • Power transformers are larger and heavier making them more suited for permanent residential use; for example an expat wishing to use an imported television would need to use a transformer for this purpose.
  • Power converters are more suitable for travellers wishing to bring domestic appliances abroad such as hair dryers or flat irons. However, it is more practical and cost effective to purchase a dual voltage appliance designed for travel rather than a heavier power converter.
  • Power converters are suitable for 2 pin ungrounded appliances, it could be harder to find a converter if you want to use a grounded 3 pin appliance.
  • Transformers can be used constantly however it is recommended that converters are used for no longer than a couple of hours at a time.
  • Shops may sell transformers under the name of converters, for the purposes this guide we will be referring to both converters and transformers as converters.

How to convert 220 volts to 110 volts

  1. Use a step down power converter [10] to allow you to use a 110 or 120 volt appliance with a 220 volt Sao Tome power outlet.
  2. If the power converter doesn't include the correct shaped plug then it will also be necessary to plug in the power cord from the power converter into a power adapter for Sao Tome before plugging that into a Sao Tome power outlet.
  3. Some power converters include the ability to perform both step up and step down voltage conversions, therefore it may be necessary to manually switch the converter to output the voltage to the 110-120 volt range.
  4. Plug your appliance into the converter and turn the power on, your 110-120 volt appliance can now be used with a 220 volt Sao Tome power outlet.

What voltage is used in Sao Tome?

Sao Tome uses 220 volts in their power outlets.

How can I tell if I have a dual voltage or single voltage appliance?

Dual voltage hair straighteners

How can I tell if I have a dual voltage or single voltage appliance?

A simple method to tell if your appliance is dual voltage is to check for a sticker on the charger or on the unit itself, normally near to where the power cord goes. This location will vary depending on the make and model of your appliance but could also be written on the box.

  • Single voltage devices might have a specific number - such as 240V.
  • Single voltage devices might also say a small voltage range (20 volts difference) with a dash to accomodate small voltage fluctuations - such as 220-240V.
  • Dual voltage devices will say a large range separated with a slash - such as 110/240V.

Substantiations

How we compared products

Typical figures based on top 5 popular electrical adapters for each form-factor from different manufacturers with prices as of October 2018.

  • Power Plug Adapters - Ceptics Grounded Universal Plug Adapter, TESSAN Grounded Universal Travel Power Plug Adapter, Tmvel Universal International Power Adapter Plug, EnriQ Plug Adapter, Ckitze Travel Power Plug Adapter.
  • Universal Travel Power Adapters - BESTEK Universal Travel Adapter, NEWVANGA International Universal All in One Worldwide Travel Adapter, Bluegogo Universal All in One Worldwide Travel Adapter, HAOZI All-in-one International Power Adapter, UROPHYLLA Universal European Adapter Dual Fuses.
  • Trvel USB Wall Chargers - iKits 4-Port USB Wall/International Charger, LENCENT 4 Port USB Travel Adapter, PISEN USB Wall Charger, Anker 27W 4-Port USB Wall Charger PowerPort 4 Lite, USB Plug Travel Charger Adaptor, Turata 4 Port Universal World Wall Charger.
  • Travel Power Strips - BESTEK International USB Travel Power Strip, TESSAN 3 Outlet Surge Protector travel Power Strip, Portable Travel Adapter Power Strip Charging Station, GR-8 Power Compact & Slim Travel Charging Station, NTONPOWER Portable Charging Station.
  • Plug Adapter Sets - Ceptics GP-12PK International Travel Worldwide Grounded Universal Plug Adapter Set, Ceptics World Travel Adapter Set - 11 Pack, BESTEK Grounded Universal Plug Set, OREI 7 World Travel Adapter Plug Set, Ceptics Adapter Plug Set for World Wide International Travel Use.
  • Voltage Converters - Power Bright VC2000W Voltage Transformer Step Up/Down converter, LiteFuze LT-3000 3000 Watt Voltage Converter Transformer - Step Up/Down, SEYAS 1000W Auto Step Up & Step Down Voltage Transformer Converter, Rockstone Power 5000 Watt Heavy Duty Step Up/Down Voltage Transformer Converter, KRIEGER 1700 Watt Voltage Transformer Step up/down 120V / 230V AC outlet American European Converter.

Weight, dimensions, number of AC outlets, number of USB powers and prices were all based by calculating and rounding an average figure for each attribute where known.

Key to electrical adapter comparison

  1. Compatible number of countries based on data from the International Electrotechnical Commission World Plugs page (cited November 2018).
  2. Assuming only a single plug adapter from the plug adapter set will be used at any one time in a compatible location.
  3. Depending on if the power strip supports voltage conversion for low wattage items. All travel power strips tested do not convert voltage for high wattage appliances.
  4. Including the device itself, any supplied plug heads and power cords.
  5. Some travel power strips featuring less AC outlets may be small and lightweight enough to be suitable for hand luggage.
  6. Number of items if bringing an entire set of plug adapters for use in multiple locations to cover all eventualities (unless bringing only the necessary single plug adapter).

What type of adapter do you need for Sao Tome?

Which type of adapter you need for Sao Tome

The type of power converter that is suitable for Sao Tome is dependant on your requirements, so before deciding which adapter to bring we recommend using this checklist:

How many electrical devices are you taking to Sao Tome?

How many electrical items are you packing

How many electrical devices are you taking to Sao Tome?

  • List all the items you want to bring to Sao Tome (such as laptops, mobile phones, tablets, eReaders, hair dryers and curling irons).
    • Allow for more electrical items at a later date. Do you intend on purchasing a new tablet computer next year?
    • There is an increasing number of smaller rechargeable electronics such as electric shavers that utilise USB charging for a power source. Therefore if you have to replace a device it might need a USB power adapter so check that your travel adapter has enough spare ports to power these too.
  • Will you also be travelling with a partner who will need to recharge their phones as well?
Will you only be planning on charging USB devices?

Will you only need USB devices

Will you only be planning on charging USB devices?

What are the types of devices do you need to use with a Sao Tome power outlet?

A USB powered phone

What are the types of devices do you need to use with a Sao Tome power outlet?

  • There are 3 different types of electrical items:
    • Low wattage electronic items which plug into an electrical outlet - for example laptops or cameras.
    • High wattage appliances which can be plugged into an electrical outlet - for example clothes irons and hair straighteners.
    • USB electrical devices which charge using a USB port - for example phones.
  • If you only want to bring along just USB powered devices then you'll find that a travel USB charger is perfect because you'll only need to pack one charger plus some appropriate USB charging cables.
  • Travel power strips are perfect for powering and converting voltage for multiple low wattage devices of any voltage, but unsuitable for high wattage appliances (such as hair irons) which require voltage conversion, potentially damaging it.

Do your devices and appliances work with 220 volt power outlets?

Is Sao Tome the only place you'll be visiting?

How many power outlets will be available when you get to Sao Tome?

Are multiple outlets available

How many power outlets will be available when you get to Sao Tome?

  • Your hotel may have only one power outlet on the wall, this will be an issue when recharging more than one device overnight because you can only recharge a single device at a time then need to swap every few hours.
  • To charge more than one device at the same time we suggest packing either a USB wall charger or a travel power strip which are capable of charging multiple USB ports or power outlets.

How much can you afford to pay?

  • Cheap power adapters start from $7 which charges only one device from a Sao Tome power outlet (providing that it is dual voltage or works with 220 volts), but investing in roughly $20 allows you to power multiple devices at once and bring them to various countries.

Are you planning to visit anywhere else abroad in the future?

Do you intend on only bringing hand luggage?

Are you only using hand luggage

Do you intend on only bringing hand luggage?

Would you like to use your charger when returning to America?

Will it take you a long time to get to Sao Tome?

Using a phone after a long haul flight

Will it take you a long time to get to Sao Tome?

  • For much longer journeys it's worth considering packing an appropriate airport-suitable power charger that can be used with different outlet types, one which can be packed in carry-on luggage and can be used to quickly charge tablets and phones just prior to a lengthy trip.
  • Because not all airlines have power outlets available we recommend bringing a travel portable charger [4] for recharging on the go. After landing in Sao Tome you could need to rely on a phone for making telephone calls, receiving text messages, using sat nav to find accomodation or reading an itinerary; make sure that your phone will have ample charge remaining.

What can I connect to a Sao Tome power outlet

Travel appliances which can connect to a Sao Tome power outlet

Beats Pill speakers which can connect to a Sao Tome power outlet

Jabra Bluetooth speakers which are compatible with a Sao Tome power outlet

Mobile phones that can connect to the Sao Tome power outlet

Apple iPhones that can be connected to the Sao Tome power outlet

Samsung Galaxy phones that work with a Sao Tome power outlet

A list of Amazon Kindle tablets which can connect to a Sao Tome power outlet

A list of Apple iPads which are compatible with a Sao Tome power outlet

Corrections

We endeavor to ensure all details on this page are correct and relevant to travelers visiting Sao Tome, if you wish to contribute any useful information or feedback please email travel@wikiconnections.org. For more comprehensive technical details visit the Wikipedia page on AC power plugs and sockets [20].

Disclaimer

WikiConnections is not responsible for any injury or damage caused due to using any type of suggested product with any other electrical device or appliance in any location, full details are available on the disclaimer page. All functions and capabilities should be checked prior to purchasing or using any power adapter. Assumptions on if any power adapter, charger, converter or power strip works in any location is based on data from publicly available sources and if it fits the primary power outlet used in that country. WikiConnections has not taken into consideration other less common power outlets which might be found as these might only be used in certain areas or in the process of being phased out.

Where possible, WikiConnections only recommends the type of product as being suitable along with alternatives and does not make any endorsement for any specific brand or product. Always check with the manufacturer to ensure full compatibility prior to attempting to use any device. Always check the reputation of the manufacturer and product to ensure the quality and safety of any electrical device being used.

  1. https://en.wikipedia.org/wiki/S%C3%A3o_Tom%C3%A9_and_Pr%C3%ADncipe - wikipedia.org entry about Sao Tome.
  2. http://www.iec.ch/worldplugs/ - International Electrotechnical Commission World Plugs
  3. Type F plug adapter - Allows appliances to connect to Type F power outlets without converting voltage.
  4. Portable charger - A power bank is a portable charger which can recharge USB powered devices such as mobile phones and tablets on the go.
  5. https://en.wikipedia.org/wiki/Adapter - power adaptor
  6. 4 Port USB Wall Charger - A universal USB charger capable of charging up to 4 USB devices with swappable international adapters.
  7. Travel power strip - A travel power strip includes surge protectors, AC power outlets, USB ports and swappable plug adapters for use in multiple countries.
  8. Universal travel power adapter - A typical universal travel power adapter can be used in over 150 different countries for use with appliances and USB devices.
  9. Plug adapter set - Plug adapter set containing a number of different power plug adapters for use in different countries.
  10. Step down power converter - A step down power converter allows a 100-120 volt appliance to be used in a 220-240 volt power outlet.
  11. https://en.wikipedia.org/wiki/Mains_electricity_by_country - WikiPedia - Mains electricity by country
  12. Rechargeable hair dryer - Rechargeable battery powered blow dryer suitable for travelling.
  13. Gas hair straighteners - Cordless ceramic hair straighteners powered by gas cartridges.
  14. 20,000mAh portable charger - High capacity 20000mAh high-speed portable USB charger suitable for charging mobile phones and some tablets for several days.
  15. USB-C PD power bank - Power Delivery charger suitable for charging laptops with USB-C support.
  16. Solar backpack - A solar backpack will charge USB devices or an internal power bank when left in sunlight.
  17. Solar power bank - Portable power bank with solar cells which can recharge when placed in sunlight and power any USB powered device.
  18. Power converter - A step up step down power converter converts 110-120 volts up to 220-240 volts and 220-240 volts down to 110-120 Volts.
  19. Heavy duty power converter - A 5000 watt heavy duty step up and step down power converter used to convert voltages for domestic appliances, power tools, televisions, heating appliances and motors.
  20. https://en.wikipedia.org/wiki/AC_power_plugs_and_sockets - AC power plugs and sockets