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Failure to Suspend with New Battery (MBP 15" Early 2013)

Hello,

I recently replaced the battery in my early-2013 MacBook Pro (15", Retina, MacOS 10.12.6). The capacity on the new battery seems good; however, at around 5% the laptop suddenly shuts off without suspending. When I plug the machine in and turn it on the date is Dec. 31, 2016.

I reset NVRAM and SMC and neither seems to have made a difference. Any suggestions what else to try? Is it possible that the new battery is defective?

Thanks!

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You might want to review this Apple T/N Use the Energy Saver settings on your Mac which goes over the different levels of rest.

From the sounds of it your system is going into Deep Sleep.

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That doesn't sound like what's happening. When I power the machine on again, there's no saved session and the Date has fallen back to Dec. 31, 2016. It looks more like a total power failure than an intentional sleep.

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Then you are loosing power to the clock logic then which means the battery is defective. To be sure double check the connection for any damage otherwise you'll need a new battery.

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This turned out to be a defective battery. Many thanks to iFixit for quickly sending me a replacement part!

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I'm happy it all worked out!

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