The Airbus A380 definitely does have a USB port in all classes of travel. The Boeing 777–200 and 200-ER have the ports in Business and First Class. Furthermore, the newer Airbus A350's have USB Ports as well in all classes of travel.
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Yes, you can usually charge your phone on a plane. Most airplanes have power outlets or USB ports that allow passengers to charge their electronic devices during the flight. However, the availability and location of these outlets may vary depending on the airline and the type of aircraft.
Economy classEconomy is laid out in a 3-4-3 configuration, as is standard for the A380, with all seats on the lower deck in the three/four-class layouts. Unless flying with family or friends, avoiding the middle seat is a priority, so seats B, E, F, and J should be crossed off the list.
How Emirates premium economy compares to regular economy. Premium Economy seats have a pitch of about 38 inches, compared to 34 inches in regular economy. Seats are also wider??19.5 inches compared to 18 inches. While regular economy seating follows a 3-4-3 layout, premium economy seats are laid out in rows of 2-4-2.
I can confirm you should be able to plug your laptop directly into the international powerpoint on the emirates flights - i did it a few weeks ago. There's also a USB power point in there as well which works for phones and the like.
Unfortunately, many flights don't have power ports to keep your devices running. Often, power ports won't charge some of your electronics. To make sure that you can keep playing and working while up in the air, you should book your flights carefully and bring adapters and power packs with you.
For example, flyers often wonder if a 20000mah power bank is allowed on flight. As 20000mah makes for less than 100 watt-hours, it can be carried in cabin luggage.