My MacBook battery may have come with cycles on it already but I can't confirm that and neither could customer service.
But I need to clarify something about my post.
My battery did not slowly degrade and begin to hold less and less of a charge. Just 2 days ago I was using it off the charger for many hours then the next morning it simply would not run without the charger.
When the charger is plugged in it says my battery has 100% of a charge. When I push on the back of the battery it has full green lights. What gives?
If it's designed to hold 80% capacity after 300 cycles, shouldn't it at least hold 20% at 600 cycles...
My PowerBook G4 that I've had for 5 years works fine on the same battery. My MacBook of one year get's nothing. Can someone explain how this isn't a defect?
The Mac Store guy used the analogy of tires, they go bald over time and then blow out. But wouldn't a battery slowly lose it's capacity, or like a tire give some kind of warning that it's about to go bust? Mine worked just as good as the day I got it, then suddenly stopped functioning.
And for those of you who are siding with Apple, "cycles" shouldn't be the only factor taken into consideration. That's just their way of copping out and forcing the consumer to eat the cost of a poorly manufactured product.
If that's not enough for you, there are countless other complaints on the Apple Website...
http://store.apple.com/us/product/MA561LL/A?fnode=home/shop_mac/mac_accessories/power&mco=MTI5Mzc5Ng