OK Ron, we got the words straightened out so that anyone who has ever seen such a thing might reply. Unfortunately, I have no idea what it could be. Does the computer work when it's on battery power? It could well be a hardware problem, so you should call Apple if you have any kind of AppleCare. Jerry on 03/07/18 23:21, Ron nie at ron00000 at yahoo.com wrote: > actually its > > First light 1 on > Then light 1 still on and light 2 on > Then light 1 and 2 still on and light 3 on > Then light 1and 2 and 3 still on and light 4 on > Then all the light off and light 1 on > Repeat from beginning. > > > --- Jerry Krinock <dearjerry at mindspring.com> wrote: >> on 03/07/17 11:56, Ron nie at ron00000 at yahoo.com >> wrote: >> >>> hi. all >>> when i woke up this morning, i was surprised when >> i >>> wake my powerbook up. (i always plugs my G4 in to >> the >>> power cord.) and the battery life is at the "0%" >> and >>> the indicator show me its charging and the message >>> said "calculating until full". >>> and for the underneath of the battery, the green >>> indicator is going one by one. please help me out >>> here. >>> sorry for my language. >> >> Do you mean that the four green lights are flashing >> like this: >> >> First light 1 on >> Then light 1 off and light 2 on >> Then light 2 off and light 3 on >> Then light 3 off and light 4 on >> Then light 4 off and light 1 on >> Repeat from beginning. >> >> It looks like no one has ever seen anything like >> this. >> >> Have you tried to restart yet? >> >> Jerry >>