A couple power supply theorys

[Jabe]

I beleave that you can use your car battery charger, if you modify it. Or you could just make it charge battery, then hook your charger to that battery.
But why not, just modify your PC powersupply, you can find many instructions about it, i did that, used two pc powersupplys in parrel 350W+350W, well the other one was behind switch, so i could apply it, when needed, never needed it thought.