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发布于 2012 年 6 月, 型号 A1278. Intel 处理器,支持 Turbo Boost, 最多 512 MB DDR5 显存

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Drain battery before swapping?

I am going to change my lithium battery on mid-2012 Mac book pro. Some websites suggest draining the battery for safety reasons. Some instructions also recommend that I shut down the computer all the way before changing the battery. I am trying to think about how I could accomplish both or these things. If I leave it on it will drain but the OS wasn’t put to sleep properly, whereas if I put the computer to sleep it won’t drain the battery. I have a flash drive so maybe it doesn’t matter, and I can just drain the battery to death before the repair.

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Draining the battery below 15-20% is generally a good idea before replacing or maintaining them. I usually just use the computer at full brightness until i get the low battery warning, then shut down.

The draining is so there’s not too much energy left that can escape if the battery would be damaged or punctured. A fully charged battery can unleash !&&* to you and your surroundings.

Happy fixing!

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Michael S 将永远感激不已
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