Released June 2012, Model A1278. Intel processor with Turbo Boost, Up to 512 MB DDR5 Video RAM

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Why do I have one battery in my MacBook Pro, not 4?

Apple registration tells me the serial number on my MacBook Pro relates to a 13", mid 2012 unit, model A1278, specifically. When I look at the teardown for this model I see it has four batteries but my laptop only has one battery, marked as model A1322. What tear down guide should I be following? Many Thanks, Signed Confused and Prone to Wandering.

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Many thanks for the assistance. Got my laptop up and running after considerable liquid infiltration. Some type of miracle I think, but I'll take it.

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These are the guides you need to follow: 13" MacBook Pro Mid 2012

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Paul Vivian will be eternally grateful.
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