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When you receive it, packaging will make you strong impression already. Thick and sturdy cardboard, protective foams, 2 screwdriver provided (for the philips remove the cover and the tri-wing screwdriver to remove the old battery!). Obviously, the battery is new, the number of charge cycle restarts to 0 and you actually find a battery whose autonomy is that of the original battery.
All this avoids you having to place your mac in apple store or in another approved warehouse, whether locked, they make you pay full price not only the battery but especially labor! In all is for all, it takes 5 minutes to change the battery! Do not be afraid of the message on the original battery stipulating that it must not remove or even. It is a commercial message, and normally if you're thinking change your battery is that your Mac is out of warranty.
Caution, however, the connector of this battery does not like to be manipulated. Put it without damaging it is easy, but remove it without damaging it requires a lot more care. That said, it's not supposed to be a removable battery, so who cares!
I will publish this message to keep you informed of the life of this battery.
