Macbook Only Works When Plugged In
If your MacBook only works when it is plugged in, it means that your MacBook may have some battery problems. May be its battery is damaged due to overheating or its battery health is reduced. To overcome this issue, you need to replace the battery of your MacBook or you may charge it properly.
One worrisome problem is when the charging cable is detached, the MacBook will abruptly turn off, only to be functional if plugged in. Like this Mac user, whose MacBook Air keeps turning off when he disconnects from a charger, you might find your MacBook works only when you plug it in. If your MacBook Pro or MacBook Air is unable to charge, or if your charger is malfunctioning, getting things working may become a race against the clock while your battery is depleting.
If the lights on the charger are not turning on, the cause of the MacBooks failure to power on or charge may be the defective plug. A MacBook that has issues charging its battery may be turning on when you connect your working charger to it. It is possible you may be decreasing your batterys maximum charging capacity by keeping the MacBooks battery connected at all times. Fortunately, you cannot overcharge the MacBooks battery by leaving it plugged in all the time, and you also cannot cause overheating or damage any other components.
The reduction means that if you keep your MacBook connected to a charger all the time, you may find that when you actually do decide to use the MacBook without its battery, it does not last as long as it used to.
| Macbook Only Works When Plugged In | |
| SMC | System Management Controller (SMC) is involved in the monitoring of all the power-related operations of a Mac. |
| Malfunctions | It frequently malfunctions when your Mac is plugged in all the time. |
| Mac’s power | When your Mac’s power is low, the SMC determines to enter deep sleep mode and turn off when the power is removed to safeguard the system. |
If you plug in a third-party charger for the MacBook, you can see the light go green or orange, and the MacBooks battery is charging just fine. When you have completely charged the battery, and when you turn off the MacBook, the USB-C charger drops its output to 5V. Of course, your MacBook will not be charging a battery, since no power is coming from the MagSafe charger. If you have a loose cord, that one-wired signal is not going through the charger, so you wont get a green light at the charging plug, and your MacBook wont charge the battery.
While it is possible that your MacBooks charging cable may still function after a little bit of damage, this could lead to issues in charging stability and security. If your MacBook uses the USB-C charging port, it is unlikely your MacBook will get any debris stuck on your cable, but you should still brush lightly around the sockets to remove any debris that should not be there.
All MacBook chargers have removable plugs, so you can use one from another charger or the extension cord of your Apple power adapter to check whether the defective plug is to blame. To correct this, make sure to connect your MacBook charger to a wall socket in another circuit, or a UPS (uninterruptible power supply). If your Mac does not charge after plugging it in, spend a few seconds checking that both charger and cables are OK. Also, make sure that your charging brick is not too hot. Another useful fix for Macs are not charging when plugged in is updating your computer to the latest macOS.
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You can bring the battery into the Apple Store or to an Apple-authorized service provider to get it replaced, should you need to use the MacBook without plugged in. If the MacBook is still unable to charge, your battery may have been damaged beyond repair. The battery is damaged, or is too old, and is not providing enough juice to keep your MacBook going. If an application is using up the battery too fast, you might have to suspend the application to allow the MacBook to begin to recharge its batteries.
If you plug a Mac into a planes power adapter, the Mac might not be charging its battery, even if you shut down your Mac or put it into standby mode. If your Mac is not charging its battery, even when it is connected, this article will explain what you can do to fix it.
This could be a serious issue for you, as without a charging battery, your Mac notebook loses mobility. Lithium-ion batteries, such as those found in your MacBook, do not like to sit idle for a long period of time without being charged. If you are using the MacBook intensively, the battery may run down more quickly.
When the Macs battery is running very low, the Mac goes into Standby Mode to keep from losing work. If none of the steps above worked, and your Mac is still turning off when you disconnect the Mac, then there is likely some sort of hardware issue that is keeping the Macbook from charging. Your battery might not charge properly if your charger is not providing stable connections, which leads to your MacBook Pro turning off when you unplug it. For example, if you plug in the charger from the Macbook Air (45W) into a 15 MacBook Pro (which requires an 85W charger), you might receive an “Uncharging Battery” notice.
If the battery on the MacBook Pro says 100, but it died while you were unplugged, resetting the battery is a handy workaround, since loose connections or an improperly placed battery may be to blame. Another thing you can try once the battery is disconnected is pressing down on the power button for 15 seconds to completely drain the logic board, and plugging back in the connectors and the charger. Once this is done, unplug the power adapter and hold down the power key for 10 seconds before replacing the battery, and then plugging back in the power adapter. If you need the power adapter to be plugged in while trying to power on, that is a sure sign the battery is depleted.
If that is the case, then the thing to do is try to disconnect it and re-plug the adapter in to the power outlet. If the MacBook uses a MagSave charger, make sure that plug is connected properly to the outlet.
Plug your MacBook into a socket you are certain is working, and let it sit for at least 10 minutes before trying the MacBook again with the battery. This could be a helpful way to prevent battery damage if you routinely leave your MacBook connected to the power supply for extended periods of time.
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It makes sense to shutdown an older Mac that is running out of juice, with no power cable attached. Also, if your battery is noticeably lower, you should hook up the computer for power. If we disconnect the power adapter, there is no power coming from the battery, and therefore, the computer will turn off. Your MacBook learns this habit, and it delays charging your battery past 80 percent until later in the morning, so that your battery cells have less time to reach 100 percent.
Why does my Mac shut off when it’s not plugged in?
System Management Controller (SMC) is involved in the monitoring of all the power-related operations of a Mac. It frequently malfunctions when your Mac is plugged in all the time. Because your Mac’s power is low, the SMC determines to enter deep sleep mode and turn off when the power is removed to safeguard the system.
Why does my MacBook Air Keep turning off with full battery?
If your Mac becomes overheated, it may automatically shut down to protect its internal parts. Most frequently, a machine’s location can cause an unexpected shutdown. To ensure optimum ventilation, we advise keeping the laptop on a level surface.