I bought four travel adapters from Coles over three years. Two are still in my bag. One broke on the first trip. One is sitting in a drawer, unused, because it’s genuinely dangerous. Here’s what I learned so you don’t waste $25 on something that’ll let out magic smoke in a Bangkok hotel room.
Coles stocks roughly six different travel adapters depending on the season and location. Most sit in the electronics aisle near the checkout, packaged in bright cardboard that makes them look more capable than they are. I’ve tested every single one I could find across Coles stores in Sydney, Melbourne, and Brisbane. This is the honest breakdown.
Why Coles Adapters Are Different From Airport Kiosk Adapters
The adapters at Coles come from three main suppliers: Arlec, a generic unbranded white-label product, and occasionally a Travel Blue branded unit. The Arlec ones are the ones I trust. The generic ones scare me.
Here’s the critical difference most people miss. Airport kiosk adapters are often rated for 2.5A continuous draw. That’s fine for charging a phone. It is not fine for a hair dryer, a laptop charger, or an electric kettle. The Coles Arlec adapters are rated at 10A, which matches what most Australian appliances expect. That matters more than you think.
I saw a generic Coles adapter rated at 6A labeled “universal” for $12. That’s not universal. That’s a fire risk if you plug a MacBook Pro charger into it while also charging a phone. The 10A Arlec unit costs $22 and handles everything I’ve thrown at it, including a 65W USB-C laptop charger running at full load for three hours.
The 10A vs 6A trap
Look on the back of the packaging. If it says 10A max, it’s safe for laptops, camera battery chargers, and most travel appliances. If it says 6A or lower, it’s phone-only. Do not plug anything that draws more than 600W into a 6A adapter. That includes most hair dryers and travel kettles.
USB ports add heat
Adapters with built-in USB ports run hotter. The Arlec unit with two USB-A ports gets warm after two hours of fast charging an iPad. That’s normal. The generic one with four USB ports? That one got hot enough that I stopped using it. Stick to adapters with a maximum of two USB ports, or better yet, bring your own charging brick and use a pure plug adapter.
Which Coles Adapter to Buy for Each Destination
Not all adapters work in all countries. I’ve seen travelers buy a “universal” adapter and discover it doesn’t fit the recessed wall sockets in Italy. Here’s the exact match.
| Destination | Plug Type Needed | Coles Adapter That Works | Price (2026) |
|---|---|---|---|
| UK, Ireland, Hong Kong, Singapore | Type G (three rectangular pins) | Arlec Single Travel Adaptor AU to UK | $12.50 |
| Europe (France, Germany, Italy, Spain) | Type C / F (two round pins) | Arlec Universal Travel Adaptor with USB | $22.00 |
| USA, Canada, Japan | Type A / B (two flat pins) | Arlec AU to USA Travel Adaptor | $10.00 |
| China, Argentina, Australia (domestic use) | Type I (two slanted flat pins) | No adapter needed — same as Australian plug | $0 |
The Arlec Universal Travel Adaptor with USB is the one I recommend for most people. It covers Type C, G, and I plugs in one unit. It’s $22, rated at 10A, and has survived three trips without issues. The only downside is it’s bulky — about the size of a deck of cards. That’s fine for a checked bag but annoying for a day pack.
The One Coles Adapter I Tell People to Avoid
The Coles-branded “Universal Travel Adaptor” in the white and green packaging for $15. I bought it in 2026. It lasted one trip to Vietnam.
The pins on the European side are slightly too short. They fit loosely in wall sockets. In a Hanoi hotel, the adapter fell out of the socket three times overnight. My phone didn’t charge. Worse, the loose connection caused arcing — you could see a tiny blue spark when it wiggled loose. That’s how electrical fires start.
The USB ports on that unit output a combined 2.1A total, not per port. Plug an iPad and a phone in simultaneously, and both charge at trickle speed. My iPad gained 12% in two hours. That’s useless.
If you see that white and green package at Coles, skip it. The Arlec unit costs $7 more and doesn’t have these problems.
How to Pick the Right Adapter Without Overpaying
Here’s the thing about travel adapters: they’re not all the same, but the packaging makes them look identical. I’ve developed a three-step check that takes 30 seconds in the aisle.
Step one: Check the amperage rating. 10A or higher. If it doesn’t say, assume it’s 6A and leave it on the shelf.
Step two: Check the plug type coverage. A “universal” adapter that doesn’t include Type G (UK) is not universal. Most Coles adapters cover Type C and Type I. Fewer cover Type G. If you’re going to the UK, Singapore, or Hong Kong, you need the specific Type G adapter.
Step three: Check the USB output. If you need fast charging, look for one that says “QC 3.0” or “PD” (Power Delivery). The Arlec units don’t have these, so your best bet is to buy a pure plug adapter and bring your own USB charger. That’s what I do now. The Anker Nano 3 30W charger ($29 at JB Hi-Fi) is smaller than most built-in USB ports and charges my phone three times faster.
Most people overpay because they buy a “universal” adapter that covers 150 countries but only works at 6A. You don’t need 150 countries. You need the three countries you’re actually visiting. Buy specific adapters for those countries. They’re cheaper, safer, and smaller.
What Happens When You Use the Wrong Adapter
I’ve seen three failure modes in person. I want you to avoid all of them.
Failure mode one: melted plastic. A friend used a $8 generic adapter from a convenience store in Thailand to run a hair dryer. The adapter melted within 90 seconds. The hair dryer was 1200W. The adapter was rated for 600W. The math didn’t work, and neither did the adapter. She had to buy a new one at the hotel front desk for double the price.
Failure mode two: dead electronics. Some adapters don’t have surge protection. Plugging into an old building with unstable power can fry your charger. I’ve lost a Samsung phone charger this way. The Arlec adapters have basic surge protection built in. The generic ones don’t. If you’re traveling to developing countries with unreliable power grids, spend the extra $10.
Failure mode three: incompatible grounding. Some European sockets require a grounded plug. The cheap adapters often skip the grounding pin. Your laptop charger will work, but if there’s a power surge, that grounding path doesn’t exist. You’re the ground. Not ideal.
The Arlec Universal Travel Adaptor with USB includes a grounding connection for Type F sockets (the ones with the two metal clips on the sides). That’s a feature most $15 adapters omit.
When You Shouldn’t Buy From Coles at All
Coles adapters work fine for short trips and light usage. But there are three scenarios where I’d tell you to buy elsewhere.
Scenario one: you need GaN technology. Gallium nitride chargers are smaller, cooler, and more efficient than traditional silicon chargers. Coles doesn’t stock them. If you want a 65W GaN charger that fits in your pocket and charges a laptop, phone, and headphones simultaneously, buy from Officeworks or Amazon. The Ugreen 65W GaN charger ($45) is my pick. It has two USB-C ports and one USB-A, and it’s smaller than the Coles universal adapter by half.
Scenario two: you need a travel power strip. Some hotels have one accessible socket, hidden behind a bed. A travel power strip with multiple outlets and USB ports solves this. Coles doesn’t carry them. The Belkin Travel Power Strip ($35 at JB Hi-Fi) has three outlets and two USB ports, plus surge protection. It’s worth the extra weight.
Scenario three: you’re going to a country with recessed sockets. Italy, Switzerland, and parts of France have wall sockets that are recessed into the wall. Standard adapters don’t fit because the body is too wide. You need a slim-profile adapter. Coles doesn’t sell these. The Skross World Adapter Slim ($28) fits recessed sockets and is available at airport electronics stores or online.
For everyone else — standard trips to standard hotels in standard countries — the Arlec adapter from Coles is perfectly fine. Just don’t buy the white and green one.
The Only Adapter Setup I Travel With Now
After years of trial and error, here’s my current kit. It costs about $45 total and covers every scenario I’ve encountered across 30 countries.
- Arlec AU to UK Travel Adaptor ($12.50) — For UK, Singapore, Hong Kong. Small, 10A rated, reliable.
- Arlec AU to Europe Travel Adaptor ($10.00) — For continental Europe. Same build quality, same rating.
- Anker Nano 3 30W USB-C Charger ($29) — Compact GaN charger. Charges my phone to 50% in 30 minutes. I plug this into the adapter, not the wall.
- Anker PowerLine III USB-C to USB-C cable ($15) — Durable, 100W rated, 1.8m long. One cable for phone, iPad, and laptop.
That’s it. Two adapters, one charger, one cable. Total weight: 180 grams. Total cost: $66.50. I don’t carry a “universal” adapter anymore. They’re heavier, run hotter, and fail more often. Two dedicated adapters cost less than one universal unit and work better.
If you’re only going to one destination, buy the single adapter for that country. If you’re doing a multi-country trip, buy two or three specific adapters. Skip the universal one.
Buy the Arlec 10A adapter from Coles, skip the generic one, and bring your own USB charger.
