However, Momo's electric discharge attack has been in BOTH her original and her new chassis.
I'm almost wondering if it's a technique that exploits the hardware that all AnthroPCs have, rather than specialized hardware. Doubtful, though, especially given the voltages and currents at play here.
In
1474, Momo was about half a meter away from the computer. Dielectric breakdown voltage of dry air is 33 kV per cm, so over 50 cm, we're talking about 1.65 MV. And, we know that Momo's discharge can be lethal when turned up, which means it's at least 50 mA (the general rules are, needs to be about 50 V to cross through a human's body, needs to be about 50 mA to stop the heart - less voltage, more current, resistance is too high for the current to make it across the skin to get to the heart; more voltage, less current, it hurts like a SOB but isn't enough to affect the heart).
If she can keep the voltage at that level when the current is at 50 mA, we're talking about 82.5 kW of energy. That is a CRAPTON of energy - in the real world, Momo's original chassis could probably hold about 50 Wh of batteries if very densely packed. Ignoring internal resistance or safety considerations, a 82.5 kW load would drain a 50 Wh battery in 2.16 seconds. (In reality, trying to draw 82.5 kW from a 65C 50 Wh LiPoly battery (so we're talking state-of-the-art, dangerous chemistry batteries here) wouldn't work, and the battery would probably burst into flame.)
Actually, now I want to see here... about 3.25 kW is the most you can get from such a battery. Now let's run those numbers. W = V * I, we know 3.25 kW, we're aiming for 50 mA, that means we get 65 kV. So, Momo needs to be within 1.97 cm of her target, to work within the ratings of her battery (assuming a 65C LiPo, which like I said is a quite unstable chemistry (read: bursts into flame easily), and deliver a lethal shock. Now, at 3.25 kW, she can sustain that for 55 seconds - EASILY enough to stop a person's heart for good.
Edit: Oh, and assuming the same 3.25 kW, she would have been putting about 2 mA into the computer. Enough to do damage for sure, with how sensitive circuits like that are at that high voltage. Not sure if it'd actually smoke the computer like that.