Charging the iPhone 4 when staying in Guam

Using the USB 30-pin Apple connector with a 2 pin Type A USB charger to power the iPhone 4 with a Guamanian power outlet and powering the iPhone 4 using a Type B USB adapter.

Guamanian power outlet

Varying different voltages and region codes can often cause confusion when planning to travel to another country especially to the first time traveller. This page has been written to prepare people wanting to power the iPhone 4 abroad.This page contains a simple guide showing exactly how to supply power to the iPhone 4 when staying in Guam using their standard Type B or A 110 volt 60Hz wall outlets. If your iPhone 4 doesn't power up or recharges slowly when you are visiting Guam from another country then check that it is compatible with a 110 volt power supply. Devices which originate from a country which use a higher voltage such as 240 volts sometimes take longer to charge or won't power up, so check your iPhone 4 is a dual voltage device (marked with 100-240 volts) otherwise you may need to use an additional power transformer to ensure proper use. These instructions assume you are running Apple iOS 7 or greater on the iPhone 4.

Charging the iPhone 4 in Guam

Can you use the iPhone 4 in Guam?

Yes, you can connect the iPhone 4 to a Guamanian power outlet by using the correct power adaptor.

What is the best power charger for recharging the iPhone 4 in Guam?

When travelling with more than your iPhone 4 the best travel power adapter for Guam is a multiple USB port adapter which includes swappable plugs like a 4 port USB travel charger. Guamanians use two different standards of wall outlets (types B and A) and using a power charger like this will ensure that you are covered for type A.

Because these chargers come with interchangeable pins and handle from 100 volts - 240 volts will mean you can travel to over 100 countries around the world just by switching the heads over. If your iPhone 4 can support Fast Charge then you'll benefit from faster recharging times with one of these USB travel chargers, along with support for more power hungry devices. Unlike other travel adapters this means you can recharge multiple devices at once without needing to buy multiple power chargers or occupying additional wall sockets. By only needing a single lightweight travel charger will keep the overall size down, making it perfect to fold up in hand baggage while travelling and on hand for recharging your iPhone 4 at the airport or on a plane. Due to their versatility these types of travel adapters can be used back at home so when you're not on holiday they can sit overnight charging multiple tablets, smartphones and e-readers and using only a single power outlet.

For those travelling on a regular basis we suggest buying this type of versatile travel charger at your preferred electronics retailer - the multipurpose power adapter illustrated below is the 4 Port USB Wall Charger which has been successfully tested for charging multiple USB devices in numerous countries with good reliably.

Alternative travel adapter for Guam

The 4 port USB travel charger is the most compact option for travellers from around the world wanting to recharge devices via USB, however for those also wanting to use their domestic plugs these power adapters provide larger but more versatile solutions. All three power strips offer surge protection which can be necessary for travellers to regions with unreliable or unstable power supplies to prevent damage to any connected devices. These travel converters come supplied with interchangeable type C, I and G plugs covering Europe, North America, Australia, United Kingdom, Japan, China 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 Guam using 3 pinned type B plug sockets.
  • 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 is a much cheaper alternative to 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 ideal for most travellers from around the world visiting Guam. [8] [AD]
What is the best power charger for recharging the iPhone 4 in Guam?

How to use a Type A power charger for recharging your iPhone 4 from a Guamanian power outlet

Using the USB 30-pin Apple connector with a 2 pin Type A USB charger to power the iPhone 4 with a Guamanian power outlet.

  1. To charge your iPhone 4 using a Guamanian power outlet you'll need to buy a Type A USB power adapter [4] and a USB to Apple 30 pin cable [5], usually already included with your iPhone 4 by Apple.
  2. Firstly plug the Type A USB power adapter into the wall supply. The plug supply (known as the Type A power outlet [3]) can be recognised by the two adjacent slots where the live and neutral blades go.
  3. Connect one end of the cord into the bottom of the USB mains adapter and the other end into the dock connector on the iPhone 4. The iPhone 4 dock connector is found at bottom of the iPhone 4.
  4. Turn on the Guamanian power outlet.
  5. The battery icon which appears in the top right hand corner of your phone will display a charging icon to indicate that the phone is charging and takes roughly 1 to 4 hours to fully recharge.
How to use a Type A power charger for recharging your iPhone 4 from a Guamanian power outlet

How to use a Type B power charger for recharging your iPhone 4 from a Guamanian power outlet

A guide showing how to recharge the iPhone 4 from a Guamanian power outlet using the Apple 30-pin connector and a Type B power adapter.

  1. If you want to charge your iPhone 4 using the Guamanian power outlet you'll need a Type B USB power adapter [7] and a USB to Apple 30 pin cable [5], usually included with the iPhone 4.
  2. First plug in the Type B USB power adapter in the power supply. You can identify this power outlet by two thin slots parallel to each other where the live and neutral blades sit with a single semicircular hole below for the earthed pin.
  3. Plug in one end of the Apple 30 pin cable into the mains USB charger and the other end into the dock connector on the iPhone 4. The iPhone 4 dock connector is found at bottom of the iPhone 4.
  4. Switch on the Guamanian power outlet.
  5. The battery icon which you'll find in the top right hand corner of the phone screen will display a charging icon to indicate that the iPhone is powering up which typically takes between 60-240 minutes to fully recharge.
How to use a Type B power charger for recharging your iPhone 4 from a Guamanian power outlet

See also

We endeavour to ensure that links on this page are periodically checked and correct for suitability. This website may receive commissions for purchases made through links on this page. As an Amazon Associate WikiConnections earn from qualifying purchases. For more details please read the disclaimers page.

  1. Wikipedia - wikipedia page about Guam
  2. Apple - official iPhone user guide
  3. iec.ch - Type A power outlet
  4. Type A USB power adapter - An unearthed Type A USB charger has 2 parallel rectangular flat blades with small holes near the tip of each blade, estimated cost under C$20.
  5. USB to Apple 30 pin cable - This connects compatible iPhones, iPods and iPads to a USB port for charging, syncing and playing music, estimated cost C$10-C$15.
  6. iec.ch - Type B power outlet
  7. Type B USB power adapter - 3 pinned Type B USB chargers have a single unearthed round pin along with 2 shorter parallel rectangular flat blades with small holes in the end of each blade, estimated cost under C$20.
  8. 4 Port USB Wall Charger - A universal USB charger capable of charging up to 4 USB devices with swappable international adapters, costs under C$20.