I am using MacBook Pro for 3 years but suddenly I notice that my laptop battery drain too fast . i have already raised this issue in this forums but sadly did not get any reply so is decide to go Apple Support Australia, they told me the solution,but further same problem happen what can i do?
Unfortunately we won't be able to assist as it's a hardware issue with your laptop. If you live anywhere close to a city that has an Apple Store they can take a look at it for you if you have questions.
Are you in Australia Jhon? otherwise Apple forums are probably your best lead.