X's current condition: Armor cracked and chipped all over. Limitless Potential has been temporarily tapped into. It is the only thing keeping him fighting. With it he does not use up energy like I said earlier, and his power is increased as well. Once the battle is over his fight with Shou is over his body will lock up, and power down due to his Limitless Potential being locked back up.
Even if John does charge X back up his body will be to damaged to do much. Gee I wonder how X is going to explain his condition to his commander back at the Military Base...