Hi all, I have a WM-102/100ii that's almost in working condition, but the gumstick battery pack needs to be held in exactly the right position for the walkman to have power. I think the problem is with the battery pack and not the walkman, as it looks like a bit of metal has snapped off. I'm having a lot of trouble finding a replacement and was wondering if anyone knew where I could find one. I'm also looking into the similar models (100, F100, F100ii, etc) to see if I can steal the battery pack from a broken unit but I can't find much on compatibility.