You call in support from Apple and ask it smooth after the serial number for your Mac. "You can change the battery under the shank find" he says, or "in the system at" About this Mac "and then and then on" more information "go, he teaches you the same even further ...

This is but a lot easier! Tip of the "About this Mac" ..., we find deeeeenn already quite good But here, then no one needs to open another window. Just my new video workshop to review and already there is the effect AHAAAA

The video is here

Have fun