Quote Originally Posted by Yukimura
When was it ever said they had to return to space to recharge the Gundams??? I remember a Gundam has to return to space periodically to charge the Ptolemaios, but I don't remember it ever being implied that Gundams had a finite energy supply? The way I remember it the Solar Furnace at the heart of each Gundam is what generates GN particles and whatever process it uses it does not have an upper limit on lifetime energy production.

If you want to get technical you can read the translated spec sheets off wikipedia and find out the full truth, but in the context of just the show we know a Solar Furnace can at least put out enough energy to charge the batteries of a space ship allowing it to operate for a few weeks in orbit with a good amount of orbital maneuvering.
Thats right, I dont recall ever hearing that the gundams ever needed to recharge or refuel. Thinking back, the word "solar furnace" reminded me of spiderman 2. Anyone think that the energy described in that movie might be somewhat akin to the energy sources of the Gundams?