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モデル番号A1286、発売日 2011年2月/2.0, 2.2もしくは2.3 GHzクアッドコアIntel Core i7プロセッサ

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New Battery replaced, shuts off after lock screen

I have a question, I have a Mac Book Pro 15” early 2011 model A1286. This is perhaps the 2nd time I have purchased a new battery. 1st one I bought was from NewEgg, it booted up normal but when you get to approximately 50% it shuts off, when turned back on with magsafe it shows 7% charging. I tried SMC reset and PRAM and it still does it, state of the battery is Normal via Coconut battery as well as it shows 100% capacity 1 cycle.

2nd battery came in, as soon as it turns on with (100% power after being charged) the computer shuts off right after lock screen (after I put password) so I plug the MagSafe and try booting it up that way and it does. I open coconut battery it shows 0 Cycle count, Normal battery, 100% charged and 100% full capacity. So I'm scratching my head like am I doing something wrong? I tried to reset SMC and It doesnt fully boot (shuts off after lock screen).

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2 件のコメント:

When you say "lock screen" are you seeing a lock or the log in page?

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The screen where you log in, (screen after the Apple icon) but before you get to you main menu.

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is it abruptly turning off or softly like when you put to sleep

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it shuts off like the "battery died" while is booting up. Im just coming to conclusion that its a faulty battery. My other battery A1286 I got from newegg, computer shuts off out of the blue when it reaches approximately 50%, ill be doing a task and itll turn off. I turn it on, and it shows 7% battery life which is strange.

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cheap batteries can't provide enough peak current, when you log into the computer it uses the CPU at almost 100%. draws lots of power, the battery can't keep up

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Cisco さん、ありがとうございました！
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