I used a 4mm x 10mm long socket cap screw and washer to fasten the Sony.
I put self-stick pads on the bottom corners.
I used 3/16" eyebolts, chain masterlink and a strap from an old Sony Handycam.
I bought an 8" wide x 6" deep x 3" high, plastic enclosure from Radio Shack.
The 6 V battery is for a kids Play & Ride. These are next to the Power Wheels batteries at WalMart.
I could not find a Play and Ride charger, so I bought a 6 V Power Wheels charger. I cut off the connectors on the charger and battery and installed mating connectors from Radio Shack and kept the proper polarity.
I took my Sony power plug to Radio Shack and had them match the tip of the power plug. I installed a mating connector to to the other end to attach to the battery connector.
It was a fun project to build, and it worked for me, but if you try make a portable unit, it is at YOUR RISK. I would recommend that you wait for the Sony portable to come out.
