That's not quite the case. At first they said Trans-Am releases all of the stored GN particles for increased suit performance, but later they said explained that when the particles reach a critically low level, Trans-Am shuts off, reason being that a certain base level of particles is needed to self-regenerate - any lower, and regenerated energy will be lower than operational energy, meaning no actual charging. The Gundams were designed to maximise Trans-Am time at the expense of lowered performance afterwards so recharge was still possible.Originally Posted by DDBen
They key here is how much stored particles are required for self-regeneration? If they operated normally post-Trans Am, how long would the suit last?
Recharging is not an issue for fake GN-Drives, only post-Trans-Am operational time, which there is no reason why it shouldn't exist, even for 30s or something.
As for other points on how this new suit will operate, I'll agree with Ryll's last point.