laptop battery not charging, pulling out charger will turns it off imm

Unplug the computer and remove the battery and carefully inspect the computers battery contacts for corrosion or dirt. Since the contacts are small an look like small wire like contacts you might need a sharp sewing needle to scrape or score any corrosion off the contacts if you see some. Also there might be some dirt or corrosion on the batteries contacts as well. Inspect the contacts and if you see any corrosion scrape them clean as well with a sharp sewing needle. Be careful not to break anything and if you see any thing leaking from your battery the it might need to be replaced. You could also use a small wire brush but if you use that you will want to be real careful not to scratch any plastic too much. If this doesn't work then keep looking for the answer, good luck!