I need a new one for my 13 macbook. What do I do? Do I shell out Â£97 at apple, which is all well and good, but I am waiting on a payment from a client, and with christmas not so far away money isn't exactly flowing or do I chance my arm on.... macbook 13 battery - Google Product Search any of these cheaper alternatives? Any of you replaced your batteries? I'm like a thread posting machine today!