Looking at the scenes where Bubbles is plugged in in Faye's bedroom, I think that the cord is not a phone charger, but more akin to the removable cords on hotpots and electric kettles.
Yeah. As far as we can see, it's a cable, and it goes into an outlet. A regular power cable (like on your extension cord or your desk lamp) is the obvious interpretation.
We don't know her age, but Bubbles' chassis was probably designed before usb chargers became ubiquitous; especially in war zones.
The human body will on average require 100W of energy. Bubbles may require more (she's larger and heavier), or she may require less (advanced technology, lack of expensive organs like a digestive tract). She certainly has a higher peak power output when doing physical feats, but for the average output on a day in the shop, 100W seems like a reasonable ballpark.
Overnight charging with a 1000W power supply would be fine, and any residential socket can easily provide more than that.
Does Jeph blog about the comic anywhere? I was wondering if he has said anything about why he switched to Hegre style for the last two panels of the previous comic.
He's used that style before, usually in situations where he's trying to give the characters a cute look in a cute situation.
He blogs on
http://jephjacques.com/ and he has a twitter account at
https://twitter.com/jephjacques , if you feel like stalking. But he doesn't talk as much about the comic as he used to.
Even I am starting to wonder whether Bubbles might be in denial at this point.
Denial about what exactly? She seems to be very aware of her affection.
Some posters seems to have a desire to put their relationship into strict categories, where the difference between the friendship-category and the relationship-category is sex. It's not that simple..
It's undoubtedly true that faye and bubbles are the most important persons in each other's lives right now. It also appears as if neither is interested in pursuing a romantic relationship with someone else at this point, because they're both getting what they really need right there, right now.
Neither of them is well versed in standard human courtship rituals, so they'll need to do their own thing, and figure out what they want and where to go from here. Looking back at their relationship so far, how they've grown together, they keep doing so with small steps, not giant leaps. Which really isn't surprising, because giant leaps tend to scare Faye away..
Whether physical intimacy is one of the next steps remains to be seen, but even then there are small steps to that, before they figure out how to equip faye with the required usb ports.