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1.8GHz dual-core Intel Core i5 (Turbo Boost up to 2.8GHz) with 3MB shared L3 cache

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battery installed but computer turns off when charger plug disconnecte

new battery not being recognized correctly. what to do??

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Download this gem of an app: CoconutBattery paste a screenshot of the main window here for us to see Adding images to an existing question. You may want to review this Apple TN as well: Apple Portables: Troubleshooting MagSafe adapters to make sure the middle pin in the connector is working correctly.

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You can try to reset the PRAM by following instructions here https://support.apple.com/en-us/HT204063

If that doesn’t work, it’s probably something on the motherboard.

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Sy Lippman crwdns2893898:0crwdne2893898:0
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