5.5amps x 8.4v = 46.2watts - thats all.
The power in charging 2S doesn't start to mount up until you start charging at higher charge C rates, 2C (11amps) - 92watts, 3C (16.5amps) - 139watts, 4C (22amps) -185watts and 5C (27.5amps) - 231watts. Your lipos have to be rated for the higher charge C rates though.I don't beleive Reedy is into higher C rate charging though.