I think that ebay seller has his Mac models wrong - the Compacts take 4.5v, his item is 3.6v. Also not sure whether a lithium will deliver the peak milliamps that alkaline can do. Anyway, I'm afraid it's the wrong battery. I wonder how long until somebody calls him on it.

For an Australian customer, seller offers shipping at $23.95 - giving a price+shipping comparison of $33.90 v. $1.50! Indeed not so thrifty for me!