That looks like the stats for the Pyramid PS26KX. My MFJ replaced a Pyramid PS-21KX that I used for a little over a year. Mine served me well without any problems. I just outgrew it. I still have it in a box incase I ever have a need for it again.

That Pyramid will work but it will not be able to push your charger to its full potential. The stated 500W output is a little decieving. That ps is rated at 22A constant at 13.8V for a total watt output of 303 watts. This would be a "perfect world" output without accounting for any loss in the process. If you want to be able to push your charger at 360 total watts I would look at something about to push at least 30A constant. If you want a Pyramid I would look at someting like the [link=http://www.etronics.com/p-23886-pyramid-ps-36kx-regulated-adjustable-voltage-35amp-power-supply.aspx]PS-36KX[/link]. This unit will easily supply your charger will all the DC it might need. The Pyramid line jumps from the 26KX to the 36KX. The 26 will be a little underpowered and the 36 will be a little overpowered.

I hope this helps