I've recently replaced a dead original battery in my ten year old MBA. Most things seems to be going well however these days when the computer gets to the low battery level (~6-7%), the system shuts down rather than just saving current state to disk like it used to, similar to what is described [post|692647|here|new_window=true] and [post|529994|here|new_window=true]. Now yes, I have read that ideally I should be regularly running the battery and normally I don't but I actually discovered this whilst trying to calibrate the battery and have been noticing it still occurs.
As per [link|https://superuser.com/questions/139354/how-can-i-manually-put-a-macbook-pro-to-hibernate-without-going-to-sleep-mode-fi/630985#630985|this page] I have checked for hybernatemode in terminal, it is set to 3 so nothing has changed there. From what I can see, it appears that the only solution for this involves resetting the SMC and hoping for the best.
Unfortunately, I no longer seem to be able to do this since the battery change. I shut down the Mac, hold SHIFT + CTRL + OPT, but pressing the power button does nothing, no chime and/or reboot even after a very long hold. Releasing the combination also does not result in a start up. If I start the machine first and then depressthe 4 buttons, I witness immediate power off with no further action, even after continuing to hold for several minutes. From testing key combinations, it seems to be the power button which is causing this. It has instant effect, rather than the usual delay of up to several seconds that I am used to from performing this process previously.
I am considering disassembling the machine to perform a "hard" reset of the SMC, however I am wondering if a) is this intended behaviour from a new battery? b) is a "hard reset" a good work around? or c) is there something else I should be trying instead?
EDIT: I just tested and the 4 key combo has the instant-kill effect even from the fully-powered state, not something I would have expected.
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EDIT 2: here's the screenshot from coconutBattery: [image|2971546]
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EDIT 2: here's the screenshot from coconutBattery:
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[image|2971546]
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EDIT 3: here's another screenshot from coconutBattery, this time in green:
I've recently replaced a dead original battery in my ten year old MBA. Most things seems to be going well however these days when the computer gets to the low battery level (~6-7%), the system shuts down rather than just saving current state to disk like it used to, similar to what is described [post|692647|here|new_window=true] and [post|529994|here|new_window=true]. Now yes, I have read that ideally I should be regularly running the battery and normally I don't but I actually discovered this whilst trying to calibrate the battery and have been noticing it still occurs.
As per [link|https://superuser.com/questions/139354/how-can-i-manually-put-a-macbook-pro-to-hibernate-without-going-to-sleep-mode-fi/630985#630985|this page] I have checked for hybernatemode in terminal, it is set to 3 so nothing has changed there. From what I can see, it appears that the only solution for this involves resetting the SMC and hoping for the best.
Unfortunately, I no longer seem to be able to do this since the battery change. I shut down the Mac, hold SHIFT + CTRL + OPT, but pressing the power button does nothing, no chime and/or reboot even after a very long hold. Releasing the combination also does not result in a start up. If I start the machine first and then depressthe 4 buttons, I witness immediate power off with no further action, even after continuing to hold for several minutes. From testing key combinations, it seems to be the power button which is causing this. It has instant effect, rather than the usual delay of up to several seconds that I am used to from performing this process previously.
I am considering disassembling the machine to perform a "hard" reset of the SMC, however I am wondering if a) is this intended behaviour from a new battery? b) is a "hard reset" a good work around? or c) is there something else I should be trying instead?
EDIT: I just tested and the 4 key combo has the instant-kill effect even from the fully-powered state, not something I would have expected.
+
EDIT 2: here's the screenshot from coconutBattery: [image|2971546]
I've recently replaced a dead original battery in my ten year old MBA. Most things seems to be going well however these days when the computer gets to the low battery level (~6-7%), the system shuts down rather than just saving current state to disk like it used to, similar to what is described [post|692647|here|new_window=true] and [post|529994|here|new_window=true]. Now yes, I have read that ideally I should be regularly running the battery and normally I don't but I actually discovered this whilst trying to calibrate the battery and have been noticing it still occurs.
-
As per [link|https://superuser.com/questions/139354/how-can-i-manually-put-a-macbook-pro-to-hibernate-without-going-to-sleep-mode-fi/630985#630985|this page|new_window=true] I have checked for hybernatemode in terminal, it is set to 3 so nothing has changed there. From what I can see, it appears that the only solution for this involves resetting the SMC and hoping for the best.
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As per [link|https://superuser.com/questions/139354/how-can-i-manually-put-a-macbook-pro-to-hibernate-without-going-to-sleep-mode-fi/630985#630985|this page] I have checked for hybernatemode in terminal, it is set to 3 so nothing has changed there. From what I can see, it appears that the only solution for this involves resetting the SMC and hoping for the best.
Unfortunately, I no longer seem to be able to do this since the battery change. I shut down the Mac, hold SHIFT + CTRL + OPT, but pressing the power button does nothing, no chime and/or reboot even after a very long hold. Releasing the combination also does not result in a start up. If I start the machine first and then depressthe 4 buttons, I witness immediate power off with no further action, even after continuing to hold for several minutes. From testing key combinations, it seems to be the power button which is causing this. It has instant effect, rather than the usual delay of up to several seconds that I am used to from performing this process previously.
I am considering disassembling the machine to perform a "hard" reset of the SMC, however I am wondering if a) is this intended behaviour from a new battery? b) is a "hard reset" a good work around? or c) is there something else I should be trying instead?
+
+
EDIT: I just tested and the 4 key combo has the instant-kill effect even from the fully-powered state, not something I would have expected.
I've recently replaced a dead original battery in my ten year old MBA. Most things seems to be going well however these days when the computer gets to the low battery level (~6-7%), the system shuts down rather than just saving current state to disk like it used to, similar to what is described [post|692647|here|new_window=true] and [post|529994|here|new_window=true]. Now yes, I have read that ideally I should be regularly running the battery and normally I don't but I actually discovered this whilst trying to calibrate the battery and have been noticing it still occurs.
As per [link|https://superuser.com/questions/139354/how-can-i-manually-put-a-macbook-pro-to-hibernate-without-going-to-sleep-mode-fi/630985#630985|this page|new_window=true] I have checked for hybernatemode in terminal, it is set to 3 so nothing has changed there. From what I can see, it appears that the only solution for this involves resetting the SMC and hoping for the best.
Unfortunately, I no longer seem to be able to do this since the battery change. I shut down the Mac, hold SHIFT + CTRL + OPT, but pressing the power button does nothing, no chime and/or reboot even after a very long hold. Releasing the combination also does not result in a start up. If I start the machine first and then depressthe 4 buttons, I witness immediate power off with no further action, even after continuing to hold for several minutes. From testing key combinations, it seems to be the power button which is causing this. It has instant effect, rather than the usual delay of up to several seconds that I am used to from performing this process previously.
I am considering disassembling the machine to perform a "hard" reset of the SMC, however I am wondering if a) is this intended behaviour from a new battery? b) is a "hard reset" a good work around? or c) is there something else I should be trying instead?
Cheers