Recently we set out to see how much it would really cost to use an external battery with our Macbook book. We were very surprised that it could set you back as far as back as $499.99 (on sale too!). We wondered if we can build ourselves one from local stores that will give us the same performance and for fraction of the cost. Well, we did. I'm looking at a receipt from a well known department store for ONLY $55.96 ! If you couple that with one of our adapters it could be as cheap as $115.96.

Check back, we'll be posting pictures soon and how it's all done!