Xantrex Powerpack 600 excellent battery back up

I bought the Xantrex 600HD and have used it several times with excellent results. Very simple operation, the handy light, am/fm radio and the 12V car battery charger with included cables makes it a very well rounded package. In a test I made, I could run about 2 sets of christmas lights for over 5 hours and in another set up, i run an Ipod plus speakers for almost 10 hours straight. For larger loads you may need something bigger but for short time needs, this product offers great features for a minimum price. Did I mention that you may also get free shipping?