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Royal Caribbean International has quietly added some items to its prohibited items list that will be concerning to some cruisers. According to the New York Post, Royal Caribbean is now banning multi-plug outlets. I know many fellow cruises routinely take multi-plug outlets to expand charging capability for multiple devices. Specifically, I routinely take an “international” adapter that I use in the European outlets in cruise ship cabins to give myself more opportunities to charge items.

While some of my international adapters are “single” plug, my favorite offers 2 North American outlets as well as 2 USB plug-ins. Based on the new policy, it would appear that is no longer allowable.
“Extension Cords and Multi-Plug Outlets/ Power Strips”
To be clear, extension cords have always been prohibited, and I’ve heard of occasions where guests had large multi-outlet power strips confiscated as well. I’ve never personally tried to take any of these on board. CPAP and other medical device users that require power will know that cruise lines always provide their own extension cords when requested.
I’m actually writing this post from a Celebrity Cruises ship, and so far, this policy has not extended to Royal’s sister brand. We’ll see if that continues. For the record, I’m using my single-outlet European adapter to provide an additional power source for this cruise.
Nautically speaking, multi-outlet options are considered a risk for overheating that could lead to a fire. Is the risk high? I don’t think so, but that decision is out of my hands. In the meantime, I’ll defer to Royal Caribbean’s judgement on this subject. A fire at sea is not something I wish to experience.
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I can see why this could be a problem. If everyone were to use them with high wattage devices, it would cause consumption and availability issues. On the other hand, most devices don’t use the normal expected full capacity of a single outlet so it’s not unreasonable to charge 2 devices from one outlet