Hey there, guys!

I recently acquired a very clean looking Powerbook 180 (and an Apple branded leather carrying case made for it that I have never seen before).  It had one owner who babied it.

The thing works great - when *only* the AC adapter is used.  If a battery is installed, the machine won't turn on.  If the machine is on and I put one of the (admittedly dead) batteries in it, it instantly shuts down.

Is this a problem with the motherboard on the machine or is this normal behavior for a completely dead battery?

Thanks for the help!