Step 1: Parts And Materials
1 410watt dc to ac power inverter
1 36ah (amp hour) 12 volt battery
1 utility auxiliary fuse block dc
1 110volt ac 2 plug receptacle and cover
1 usb cable extension
1 plug in cigarette light battery monitor lcd display
1 dual cigarette lighter auxiliary all weather plug
1 momentary push button
The rest of the parts are basic electronics butt connectors and basic electrical wire or 12 to 10 gauge speaker wire will do fine also.
1 rivet gun with multiple size rivets
1 rechargeable drill and standard drill bit set 5 piece set will do.
1 receptacle box
1 male ends from old pc tower power cords