Press the power button and then press the command option p r keys.Yes, a full shut down, not just logging out. Here’s how to reset the NVRAM on your particular MBP: Before following the steps below, ensure you have no external hardware connected (so, unplug any external displays, storage devices, etc) and make sure you use the built-in keyboard. Since it's easy to do, the first things I'd try are to reset both the NVRAM and SMC in that order. I've never seen the percentage when it dies but I am suspicious that the battery isn't hitting 0%. macOS used to notify of low charge previously, but now it just dies without any notification. I'm not running any energy-intensive app, as determined by the energy tab in Activity Monitor app, as shown in the illustration below:Īdditionally, my MacBooks dies without any warning.
Half an hour ago the battery was fully-charged, it is now at 84% charge. I suspect some unusual activity with the battery which is not normal. Here is the battery information as displayed by the system report: Battery Information: The current cycle count is 505, and battery "State of Health" according to coconut Battery is 85.2%. I am using a MacBook Pro 15" Mid-2015, running macOS High Sierra 10.13.3.
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