Hi there, Phil!
Thanks so much for stopping by the Moms Panel with your question! You must be getting so excited with your vacation coming right up around the corner!
There is a brand new restroom area in Fantasyland with a super cool Tangled theme! In fact, Rapunzel's Tower is there too and it's just gorgeous! I was so excited the first time I saw it, the attention to detail is just phenomenal. This area is located just beyond the "it's a small world" Attraction as you make your way around to Liberty Square. The most ingenious part about this area, in my opinion, is that the Imagineers worked in 6 charging stations, each with 2 electrical outlets so we can all keep our smartphones and tablets charged up throughout the day while we're touring Magic Kingdom Park.
I have seen speculation of more of these charging stations being incorporated into more areas of the Theme Parks, but I have not seen any official announcements from Disney yet. I'm thinking that with the
My Disney Experience app being so popular with the helpful Park touring tips it provides, more of these charging stations might be popping up in the future. I recommend keeping an eye out on the
Disney Parks Blog for future announcements.
As for your portable charger, I would bring it with you. If you're anything like me, you're constantly taking pictures and posting them to various social media outlets which really drains the battery on your phone in a big hurry. I love being able to charge my phone while it's just sitting in the backpack and I've got my hands in the air on Big Thunder Mountain Railroad! :)
I hope this helps, Phil! Please let us know if there are any other questions we can help with.
Have a Pixie Dusted vacation!
~Jackie