Make sure you take out the pram battery inside. I had one that just stopped working becuase i waited to long to take out the battery. Had to part it out and recycle the logic boardSuch unutterable rubbish. Fortunately, that's my work machine so it's work's problem to get me another one, at least once I can go into the office again...
On forum topic, this month's inadvisable is a PowerBook 3400c/240 which came with a lot of RAM and one of the most extension-overloaded installs of MacOS 8.6 I've ever seen.
View attachment 33652
I got this for two reasons: firstly, to swap bits out from my old PowerBook that I am mildly sentimental about but which doesn't work so I can work out what's wrong with it, and second to install Rhapsody on and have a go with it, because I've always wanted to. Probably just to visit, though.