The notebook does not power on battery either, even when the battery is full charged. Yes it could be a faulty adapter. But did your notice that the green light on the AC adapter stays on only until I connect it to the laptop. Then it goes off. If I want it to light again, I need to unplug from laptop and kind playing with it until it gets on again. If I reconnect it goes off again.
Somebody told me that I could have to change the power button because it is worn out or change the power jack inside the notebook.
I've never encountered a worn out power button, and I've notebooks that are 15 years old.
The fact that you have to "kind of play with it" leads me to believe you have faulty wiring in the PSU that may be shorting the supply out, and shutting it down. A multimeter should confirm/deny this. It could very well be the jack on the motherboard - check to see if it is loose. Make sure that the jack (and the connector on the end of the PSU) are undamaged and don't have debris inside of them.
The fact that your PC won't boot off of battery may also suggest your motherboard is damaged.
> From what you describe....your laptop motherboard either has a bad power jack AND OR a motherboard that has a shorted component on it. Either way.... check the Latpop Doctor and email him for a quote. He specializes in these type of repairs and can get you back up and going again. EMAIL> firstname.lastname@example.org
Did great with my DC jack repair and does many extras while he's inside the laptop!
With my laptop when it was not charging, it was also intermittent for powering up when the battery was out of the machine.
The DC power jack ended up being loose or not functioning properly. The Laptop Doctor > email@example.com
fix my laptops charging problem and also did alot extra while inside the unit to tune it up and clean it out.
Might want to check in with him...or send him an email.