Done! Now my Macbook Air has a new lease on life! I travel a lot and need good battery life on my Macbook so that I can work on flights, work throughout the day in meetings, do presentations etc.,
I ordered the battery and a pentelobe screwdriver from iFixit - they arrived quickly and as as promised in South Africa. The replacement took just a few minutes. The guide was very helpful and easy to follow. Now I have 6 hours of battery life again (or maybe a few minutes less ;-)
Thanks guys. I am very happy!