![]() Your MacBook Pro battery has a life expectancy at or around 1,000 cycles. Runaway the safety circuits may then shut the battery power down And possibly, if the battery interprets this as a risk of thermal.Stressing the computer with more demanding work produces additional.Higher remaining capacity than it does (hence the false capacity reading) The higher discharge rate fools the meter into thinking it has.The heat causes higher discharge (depleting the battery more quickly).A failing battery causes pressure build up.You can read here the many reasons why batteries failĪs an example of how this could play out to produce what we are experiencing, consider the following: If you know scripting that would make it quicker.īatteries are actually very complex with chemistry, engineering, electricity, electronics, pressure and general physics all playing a role. To double check, you could open the console and search for all occurrences of when it unexpectedly shut down and confirm it only happening on battery, but that may be a bit time consuming. If it behaves well on the power supply, I would take that as the best evidence. The easiest way to confirm is to see if it still happens when the laptop is connected to the power supply. ![]() So I think a failed cell is the most probable cause. I don't stress it with tasks like video editing at the moment, but if I did it would not surprise me to see that 30% figure rise even higher. I have the same issue, also a 2013 MBP, and it will shut down sometime between 20-30%. The battery is actually a collection of cells and it's possible that one of the cells has failed in a way that doesn't accurately reflect in the meter of charge remaining. Then I was asked to choose Wifi and fill in the password and after a few moments I got such message I also tried to run the Apple Hardware Test as suggested(turn on + hold D or Option D) So, question is - how can I check if it is a battery issue or anything else? And see that I still have like 50 percent of battery.įirstiful I think, that I think that I need to change the battery (actually I have 600 cycles), but I am not sure, because as far as I know this battery can easily work up to 1000 cycles of charge, and secondly I tried to find something in google like "Mac turns off, battery issue" and similar questions, but nothing. Ok, then I connect the charger to Mac, wait a minute and successfully turning it on. Then if I try to turn it on again I see standard image(notification) like "You need to change your Mac". ![]() I can surf the browser and make some light work all nice, but if I try to open (for example) Video Editor or some development tools, something that requires more power from my laptop, so my Mac just suddenly turning off. Moreover, you can see the manufacture date, the number of load cycles, the OSX Battery status, and the battery temperature / usage level / state.I have such MacBook Pro (Retina, 15-inch, Early 2013), and I noticed such "feature": for example, I have 50 (it could be any number) percent of battery, charger cable does not connect. It also empowers you to have a look at current battery charge, the maximum possible charge at the time, but also the initial capacity for the battery design. It sports a really intuitive graphical interface with plenty of tools at hand and some really nice features that you could use.
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