Yes, zero amps is what you want as it means there's no current flowing into the battery, despite the orange light. Your cycle count is just at 1, despite the battery being several months old, so I'd certainly exercise it a bit. Will be good for the health of the battery even if it doesn't solve this particular problem, though it might do that too.
Saw your edit: yes, go ahead with the calibration as if the light were green to begin with. Your remaining charge is reported as 4798 mAh, which is full or very nearly full, regardless of the light situation. Try doing something fairly intensive for at least 10 minutes or so of the discharge, perhaps encoding a video for iPod, or smth like that (that gets the CPU up to 100% (check in Activity Monitor, etc.)). That will get the electrons really moving in the battery, which is good for it occasionally, as high currents burn away little creeping tendrils of conductive material which otherwise build up in the battery over time. These create small-scale short circuits in the battery, diminishing life.
… engrossed in such factional acts as dreaming different dreams.
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