Get an old computer power supply and make yourself one. Can get it complete under $20.00.
I did because I have the Triton on the way and wanted to use the house power most of the time.
Look here for instructions.
It is really easy!
I also used bannana plugs on the supply.
I will cut off the alligator clamps off and solder on bannana clips. I already made the adapter for the clamps in case I want to use the truck battery at the field.
I will post pics later if it helps.
Jason