Xantrex Technologies 852-2070 XPower PowerPack Sound

This is the best unit I have ever had. We own a campground and we carry it all over the place listening to music on our golf cart. Its very strong the sound is great very clean sounding. The battery last forever before you have to charge. Its nice to have as back up for electricty when needed. The lights are great for sitting around the lake and hearing music. The case its in is very strong. It is a heavy radio I don't recomend it for kids or elderly people.

This is a great idea, if only it would live up to it. I received this power pak and charged it for 48 hours as instructed. When I turned it on, it immediately dropped from 100 percent power to 90. When I plugged my mp3 player to it, it dropped to 70 percent before I played one song, and it went downhill from there.
The sound is terrible at any volume.
I figure the rechargeable battery was probably defective so I ended up having to return it.
The only pro to this order was Amazon's great service

I can't believe they are claiming that this unit delivers a good sound. It might be handy around the house, but get something else if you're looking for a portable stereo that sounds decent.