Yep, the monitor said I was down to 2/3 so here I am. I am so curious about your charging unit, Jenna, and that it has blue wire dangling as you charge. This unit I have is basically a small disk battery unit which I activate, then it beeps until centered on my skin over the implanted unit whereupon it quiets. I leave it sitting there about 3/4 hour and I am back to full charge. No wires.
I realize each of our units vary, and yours was a unit wholly new to us, but the thing about wires was new. Even so, talking to the airline, they should be able to accomodate your need for recharging, perhaps in private, and perhaps even in the galley. The electrical plug ins at seatside, may be able to do the trick, you just need to verify this with the airline.
Family and friends alike are most likely to be thrilled to see YOU much more so than that they will be curious about the bionics. Frankly, for me with a remote I keep in my pocket and adjust from time to time, it has become a matter of curiosity and then joy on the part of the viewer as they become fully aware and informed of your medical miracle. I don't think any Frankenstein stygma should either precede you for follow you. Mainly, warmth, acceptance, and thrill for you that you are up your own twos [even using a cane].
Take care of yourself. The temptation will be to overdo. If you begin to feel fatigued or increased pain it may be time to reat a bit. Now the thing about shopping malls.... no two ladies I know are able to resist going to the shopping malls for a pleasant time taking in the fashion. When I do go, I find them overwhelming from a time on feet perspective, so either take my own wheelchair or borrow one from the information kiosk located in every mall I have ever seen. You may be self conscious about being in a chair, but SO WHAT. It will aid you in making it through such a fun engagemet without overdoing.
Above all in your trip avoid the temptation to OVERDO. If you manage this way, you will all around have a more fun time.
Pretty soon you will be hooking your seat belt, attaching your wings and it will be wheels up! Your Adventure will begin.... and all will go well for you since you have prepared so well in advance.

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Mark56