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As long as you use two breakers next to each other (like the two on the left) you will get 220/240VAC. They should come with a 'tie' to make both breakers work at the same time as the one in the picture. On a breaker box such as the one in the picture, every other slot alternates - using the left 110 feed, and then the right. If you use breakers from the opposite side of the box, you could end up with two wires from the same leg (which wouldn't produce 220/240)
The bonus about your breaker box is that it is wired correctly as a subpanel. Sometimes people will buy a box and not remove the bond between the ground and neutral (required on a main panel, but not permitted on a sub).
If you look on the charger data plate, it will probably say how many amps it uses under full load - Probably around 12-15 amps @ 220vac
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