This may be a combination of problems. I suspect a spread outer ring on your AC power adapter preventing good consistent contact. (I have a fix). A possible defective battery. If at all possible download and run Coconut battery to see what we can find out about the battery. Look at the battery contacts and see if you spot any corrosion.
This may be a combination of problems. I suspect a spread outer ring on your AC power adapter preventing good consistent contact. (I have a fix). A possible defective battery. If at all possible download and run Coconut battery to see what we can find out about the battery. Look at the battery contacts and see if you spot any corrosion.