The one I ordered has a battery pack and a battery door on the device. But I have no idea about availabilty or cost of a new one. I guess I cross that bridge when I get there.
I have been working with mine tonight. Getting to know it and find all the bells and whistles. I've been adding c-band birds to the memory and blind scanning them. Seems to be a good sensitive receiver. The screen is nice and bright and the case can be made into a hood over the screen. Nice meter with BER info also. The battery pack unplugs like a cordles phone battery. It didn't come with the (optional) car power cord. The menu is intuitive and easy to use. Haven't read the manual yet but it should be good for a few laughs.