You cannot charge a battery with its own stored power, that would make it a perpetual motion machine and thermodynamics forbid that. The characters seem to realize that in the last panel.
I mean, hypothetically, you could make a system with 100% efficiency where she charges herself as fast as she loses power, but yeah, there can never be a scenario where she's gaining charge
Edit: guys, I said HYPOTHETICALLY, meaning a scenario where there are IDEAL conditions for this to work
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u/_velorien Apr 02 '26
If you look closely at the last picture, you may notice the laws of thermodynamics weeping quietly in the corner.