Panel 1 is interesting today because it gives us an insight into Bubbles' personality: She is the sort of person who broods endlessly about the big questions and major problems and, as a consequence, forgets to attend to the smaller and more immediate issues at hand. Then we read panel 5 and we realise that, ultimately, it is because she's afraid that those big things will always remain insurmountable for her.
That is why she needs friends. That's why she is so lucky to have Faye in her life.
Then we read panel 6 and realise that Bubbles has a very, very dry sense of humour and is far more aware about things than she sometimes makes out.
The problem with that theory is the fact that Bubbles is a combat model AI chassis. Unless you can guarantee a dedicated system to help her and other AI recharge in the middle of a warzone, its something of a difficult thing to do, especially because you can't guarantee that system. In all likelihood, Bubbles and her kin were designed to use what they could, where they could, her charging system would be quite robust. In fact, I wouldn't be surprised if Bubbles had a setup like this to help her charge.
The problem of not always having a compatible recharge source can be solved by:
- Having a long battery life (>3 days);
- Being able to plug into any and every military vehicle.
I also wonder if Bubbles has an ability to further extend her charge duration by having a feature of her 'sleep mode' where she runs all her systems down to bare minimum for a few hours.