Help with generator

[blackwolf]

Great game, but now I'm stuck

Spoiler below!

Where is the battery and fuse for the generator? There's a box with batteries next to the generator, but the lid is welded shut. I found a fuse on the top shelf in a small room, but the game says that the fuse is different than the one I need. I've been to three rooms, the power room, the room where I found the fuse, and the room where the radio is at. Is there another room that I'm missing?