It may have a weak battery or be overheating. If you’re having this problem, you need to check the battery. Related Post: Why is MY HP laptop so Slow Battery Problem It’s best to get a new battery and check the connection with the power supply. Otherwise, the battery is just a flimsy replacement. If it’s not, check the battery and make sure it’s fully charged. If this is the case, the battery connector is broken. Your battery may be dead or not hold a charge. Weak BatteryĪnother common reason for a laptop to shut down when unplugged is a weak battery. If this is the case, try resetting your charger to reset the problem. This will cause the whole breaker panel to trip, resulting in no power at all. If this is the case, your laptop may not be able to receive a charge. You may have a faulty power outlet or the plug itself is damaged. This happens when no power is supplied to charge the battery.
#Laptop turns off when unplugged how to#
How to Solve Laptop Shuts Off When UnpluggedĪnother reason why your laptop shuts down when you unplug it is that it’s running out of charge.in case SMC reset does not solve your problem you should consider a more thoroughly inspection of your battery.įrom experience I can say that a screwed up SMC can put excessive stress on a battery and destroy it in a very short time.does it charge? What does the MagSafe LED say: green, orange, off?.check all the connections, what is the condition of your battery? Is it starting to increase its volume? Do you have a stable power connection at power outlet or at the MagSafe?.When your MagSafe connection works you should get proper feedback from the LED. A SMC reset + MagSafe cleaning helped in our case, but we will probably have to buy a new power adapter. In our case the MBP stopped holding charge and did not charge.
A screwed up SMC could be at the cause of all your troubles and in that case the question is: why did it screw up?
#Laptop turns off when unplugged pro#
If, for example your MagSafe connection is not stable, your SMC could get into trouble: are all the pins ok or is one stuck? This happened to a MacBook Pro we have and as a result we had to buy new Batteries continuously until we found out, that the pins apparently did not have a stable connection. The other two answers already explain everything you need to know about each of those steps very well.īut you should also check all the components and connections your current passes through: power adapter, MagSafe connection pins, MagSafe connection at your laptop. Try resetting SMC first and only after a SMC reset did not solve your problem you should think about replacing your battery. Start inspecting all the different components involved. Your MBA will now be able to hold a charge like it did when new. Make sure you note where each screw comes from as they are different. Don't yank it off, use a spudger or similar tool to disconnect the molex connector by "wedging" it off. Just be careful when disconnecting the battery from the logic board. Then, just remove the screws holding in the battery and swap. Just remove the screws holding the back cover in place. To replace the battery it's actually very simple.
Definitely avoid the ones with less than a 12 month warranty no matter how inexpensive they are. From personal experience, the more "warranted" batteries lasted much longer. You just need a new replacement battery battery (I suggest getting ones with at minimum a 12 month warranty 18 month is better). If we unplug the power adapter, the battery has nothing to supply so the computer shuts off. (Coincidentally, I have a MBP with the exact same symptoms you have, so the output here works perfectly!) The key here is that under "Amperage" we get a "0" which means there is literally no current coming from the battery (Note: even though it may have voltage, if there are no amps, it won't have the "power" to supply). Here we can see that the battery is in need of service. You can limit it to just the battery info by tweaking the command as follows: $ system_profiler SPPowerDataType | grep -i "charge information" -A 10 The output can be rather lengthy the info you need will be at the top. That will give you all the power settings related to your Mac. Using Terminal, just issue the command: $ system_profiler SPPowerDataType These are all good, but in my opinion, I would much rather use built in tools to get this info. There are a number of utilities that you can get (paid and free) that will look at your battery status: If it's necessary to have the power adapter plugged in when trying to turn it on, it's a sure sign that the battery is discharged. The computer (in this case your MacBook Air) turns off because there is no more/not enough charge in the battery.
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