At this point, unplug the charger and use the Mac until it runs out of battery power.Once it’s charged, use the MacBook/Pro/Air for about two hours while the charger is still plugged in and turned on. In fact, Apple also suggests this to help take care of your battery, though the frequency does depend on how often the computer is used. This method could take you a while, but it’s worth it to fix the Service Battery warning on your Mac. Note: resetting the SMC can also help fix Wi-Fi problems and dropped connections on your Mac. Even so, you may need to take other steps to fix the Service Battery warning on your Mac. Resetting the SMC often does the trick.Power up the MacBook, then check the battery status menu to see if the “Service Battery” warning has disappeared.Hold the Shift + Control + Option + Power buttons, then release them.Connect the power adapter from your computer to a power outlet.Macs from around 2009 onward will fall under this category, and if your battery is failing on a machine this old, you’ll likely want to buy a new MacBook anyway. You can try resetting the SMC if your MacBook comes with a non-removable battery. Reset the System Management Controller (SMC) There are many causes of a failing battery – but only a few concrete fixes. Older Macs are rated between 300-500 cycles.ģ Ways to Fix the Service Battery Warning on Mac
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