Well,
I finally got my POB converted to 55W. I bought the 55W ballast locally form a guy on Craigslist for $75.00. It has an internal igniter but was a little too big to fit in the stock ballast location so I placed it along side the Lipo battery in the existing battery compartment. The battery I bought from Hobby King along with a charger that I still need to learn how to use. I made a divider out of lexan and aluminum that fits fairly snugly between the battery and the ballast to help hold them so they don't flop around in the battery compartment.
I ground off the round ring from inside the tailcap to hold the divider in the compartment as you can see in the pics.
I weighed the complete unit on my digital fishing scale and it said 5lbs 11oz. Not sure how accurate the scale is but it's noticeably lighter than with the stock SLA battery.
I spliced in another Deans type connector to the battery leads and ran it out the top of the light below the handle along with the Lipo balancing lead so I can charge the battery without removing it from the light.
I've only run it for a few minutes so far so I don't know how long the Lipo will last but it's not a real concern for me as I don't use this light for long periods at a time anyway.
I'm probably going to put a small digital meter on top by the Deans connector so I can plug it in when needed to keep tabs on the battery status.
All in all a pretty easy mod once I found a suitable ballast. I will post some beamshots soon when it warms up a bit here in MN comparing it to a stock POB.
I'd like to thank "Patriot and Richie086 for all their help in leading me along with this mod. I wouldn't have attempted it without the help from great guys like them who aren't afraid to help a newbie like myself.
http://i260.photobucket.com/albums/ii1/Parker-VH/POB55W001.jpg