Why does my MacBook Air lose all of its battery charge during the night, while unplugged? The battery is BRAND NEW, from OWC. The Energy Saver settings are: Computer sleep: 10 minutes; Display sleep: 10 minutes. There was 58% charge left last night when I put the computer to sleep. This morning?? - Dead, 0%, nothing, nada. Any thoughts?
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Need help with Sleep mode
- Thread starter donl1150
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What does it say when you go to the apple menu and choose About thie Mac > More Info > System Report > Power > Battery Information?
Here is the current info:
Battery Information:
Model Information:
Serial Number:W01107AW7D3BA
Manufacturer:Newer Tech
Device Name:A1405
Pack Lot Code:3230
PCB Lot Code:30db
Firmware Version:ddae
Hardware Revision:dac2
Cell Revision:2b39
Charge Information:
Charge Remaining (mAh):2380
Fully Charged:No
Charging:No
Full Charge Capacity (mAh):7335
Health Information:
Cycle Count:3
Condition:Normal
Battery Installed:Yes
Amperage (mA):-3361
Voltage (mV):7517
System Power Settings:
AC Power:
System Sleep Timer (Minutes):10
Disk Sleep Timer (Minutes):10
Display Sleep Timer (Minutes):3
Wake on AC Change:No
Wake on Clamshell Open:Yes
Wake on LAN:Yes
DarkWakeBackgroundTasks:1
Display Sleep Uses Dim:Yes
Hibernate Mode:3
PrioritizeNetworkReachabilityOverSleep:0
Standby Delay:4200
Standby Enabled:1
Battery Power:
System Sleep Timer (Minutes):12
Disk Sleep Timer (Minutes):10
Display Sleep Timer (Minutes):12
Wake on AC Change:No
Wake on Clamshell Open:Yes
Current Power Source:Yes
DarkWakeBackgroundTasks:0
Display Sleep Uses Dim:Yes
Hibernate Mode:3
Reduce Brightness:Yes
Standby Delay:4200
Standby Enabled:1
Battery Information:
Model Information:
Serial Number:W01107AW7D3BA
Manufacturer:Newer Tech
Device Name:A1405
Pack Lot Code:3230
PCB Lot Code:30db
Firmware Version:ddae
Hardware Revision:dac2
Cell Revision:2b39
Charge Information:
Charge Remaining (mAh):2380
Fully Charged:No
Charging:No
Full Charge Capacity (mAh):7335
Health Information:
Cycle Count:3
Condition:Normal
Battery Installed:Yes
Amperage (mA):-3361
Voltage (mV):7517
System Power Settings:
AC Power:
System Sleep Timer (Minutes):10
Disk Sleep Timer (Minutes):10
Display Sleep Timer (Minutes):3
Wake on AC Change:No
Wake on Clamshell Open:Yes
Wake on LAN:Yes
DarkWakeBackgroundTasks:1
Display Sleep Uses Dim:Yes
Hibernate Mode:3
PrioritizeNetworkReachabilityOverSleep:0
Standby Delay:4200
Standby Enabled:1
Battery Power:
System Sleep Timer (Minutes):12
Disk Sleep Timer (Minutes):10
Display Sleep Timer (Minutes):12
Wake on AC Change:No
Wake on Clamshell Open:Yes
Current Power Source:Yes
DarkWakeBackgroundTasks:0
Display Sleep Uses Dim:Yes
Hibernate Mode:3
Reduce Brightness:Yes
Standby Delay:4200
Standby Enabled:1
open terminal and paste this:
cat /var/log/system.log | grep -i "wake reason"
Then it will give reasons why the computer wakes during sleep.
Google what each response means and how to go about resolving it.
Note I'm not a real terminal user by a long shot, I just went through the same thing, and was instructed to do what I put above, and it helped. Now instead of losing 45% overnight, it looses about 8-10%from a full charge from after work around 6pm until 8 am the next day.
Good luck.
Brad
ps mine was giving a code of uhc2 I think, which led me to do a lot of resets and re did all my printer set ups.
cat /var/log/system.log | grep -i "wake reason"
Then it will give reasons why the computer wakes during sleep.
Google what each response means and how to go about resolving it.
Note I'm not a real terminal user by a long shot, I just went through the same thing, and was instructed to do what I put above, and it helped. Now instead of losing 45% overnight, it looses about 8-10%from a full charge from after work around 6pm until 8 am the next day.
Good luck.
Brad
ps mine was giving a code of uhc2 I think, which led me to do a lot of resets and re did all my printer set ups.