I can't find my old thread, so I am posting this as new. A couple weeks ago I got a new Quicksilver and I set it up in the dining room. I also put my 17" PowerBook G4 DLSD next to it with my iSight cam for Skype. Now this PB has been reporting "no battery" or "Battery not charging" for almost a year or so. I'm short a power adapter and my son's hard drive on his PowerBook died, so I used that power adapter to run my PowerBook. Yesterday, I started to clone my son's drive which meant I needed the power adapter back. This morning, just for the heck of it, I hit the power button on the PowerBook. I got a chime, which shocked me and it booted! Showing 72% on battery! The only thing I can guess happened is that the PRAM battery was just flat and two weeks on a charger doing nothing probably recharged it and allowed the battery hardware to start working again. IDK, but my DLSD is back and I'm happy! The underlying cause I know is the face that I often let the Mac drain down. Never going to do that again. It's sleeping on it's own again right now, but I will plug it in soon. Replaced the DC-In board again too and that didn't help so I guess it was just the PRAM battery. Anyway, it's working now! EDIT: Unfortunately, I do not have a spare 65W AC adapter at the moment and my other 17" PowerBook is busy cloning my son's HD so I can't use that one. I tried my wife's adapter, but since she has a 12" PowerBook G4 it's 45W. So, for now, I have shut off the DLSD. EDIT2: Spoke too soon. It's running off battery, but seeing all adapters as 45W and not the 65W they actually are. So…I'll probably try swapping the DC-In Board (again) and see if that fixes it. If not, it's got to be down to something else in the circuitry. Probably the logicboard.