Hi @Bert, we've finally finished unpacking everything that came in our second container, and since we shipped the second one almost a year after the first one, I packed the second container differently, based on our experience. For reference, I was moving from Weehawken, NJ, very close to Newark.
Electronic items we brought, and are happy that we did:
Vacuum cleaners. We had three, and we brought a Dyson and a Shark. Vacuum cleaners in Portugal rarely come with beater bars, as wall to wall carpeting is less common. We ripped out the wall to wall carpeting in our Portuguese house, but we do have a few wool carpets, and they tend to look better when vacuumed with the beater bar aka brush attachment. We bought adaptors from Amazon Germany, and the vacuums work perfectly. Here's the link to the ones we bought: https://www.amazon.de/-/en/gp/product/B07PSHY58D/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
Roomba - Roomba works fine, we use the adaptor we have for the vacuums.
Blenders - we brought a juicer and a blender. Both items burned out when trying to use them, even with the adaptor. Not worth bringing, in my opinion.
Instant Pot works great with the adaptor.
Waterpik - weirdly, another thing that didn't seem to work, even with an adaptor. We bought a new one here.
Hairdryers - forget them! They also burn out, even with adaptors.
Other random things that we were going to get rid of, and are glad we ended up shoving into the container:
Alexa and Echo dots: Both work fine here.
Ring Security Cameras - they just need a charge off a USB, and a wifi connection, so they are great for us. We have one at our front door and one for our garage.
Blink cameras - we had bought a set of Blink cameras on Black Friday a few years ago, and we'll set them up. We tested them, no problem as they also just need a charge and that's via USB port.
If you are tech-savvy and like your toys, bring them with you. Tech stuff is quite expensive here, even if it's just a hard drive.
Feel free to reach out if there is anything else that I can help with 🙂