Q: Inconsistent Behaviour Battery

Hello everyone,

My Macbook Pro Early 2011 does not charging battery when plugged in the MagSafe. He is presenting two behaviours.

1 - The light indicator of the MagSafe keep green and battery says "Not Charging", but when the Macbook is shut down the light stay amber and the battery is charging.

2 - In some times the light stay amber and battery says "Charging", but she is draining.

- Informations on the first case

Battery Information:

   Information Model:

   Serial Number: 0123456789ABC

   Manufacturer: PD

   Device Name: bq20z451

   Pack Lot Code: 0

   PCB Lot Code: 0

   Firmware version: 0

   Hardware Revision: 0

   Review of cell: 0

   Information load:

   Charge Remaining (mAh): 4678

   Fully Charged: No

   Loading: Yes

   Load capacity (mAh): 5647

   Status Information:

   Cycle Count: 1

   Condition: Normal

   Battery Installed: Yes

   Amperage (mA): -467

   Voltage (mV): 11883

System Power Settings:

   Alternating current:

   System Sleep Timer (Minutes): 10

   The Disk Sleep Timer (Minutes): 10

   Monitor Sleep Timer (Minutes): 10

   Awakening the Power Supply Switch: No

   Awakening to Open Laptop: Yes

   Awakening to Connect to Local Network: Yes

   Current Source of Supply: Yes

   Rest Monitor Uses Darkening: Yes

   PrioritizeNetworkReachabilityOverSleep: 0

   Standby Delay: 4200

   Standby Enabled: 0

   Battery Charge:

   System Sleep Timer (Minutes): 10

   The Disk Sleep Timer (Minutes): 10

   Monitor Sleep Timer (Minutes): 2

   Awakening the Power Supply Switch: No

   Awakening to Open Laptop: Yes

   Rest Monitor Uses Darkening: Yes

   Reduce Brightness: Yes

   Standby Delay: 4200

   Standby Enabled: 0

Hardware Configuration:

   Sist. UPS Installed: No

AC Charger Information:

   Connected: Yes

   ID: 0x0100

   Voltage (W): 85

   Revision: 0x0000

   Family: 0x0085

   Serial Number: 0x0043d869

   Loading: No

- Informations on the second case

Battery Information:

   Information Model:

   Serial Number: 0123456789ABC

   Manufacturer: PD

   Device Name: bq20z451

   Pack Lot Code: 0

   PCB Lot Code: 0

   Firmware version: 0

   Hardware Revision: 0

   Review of cell: 0

   Information load:

   Charge Remaining (mAh): 4678

   Fully Charged: No

   Loading: Yes

   Load capacity (mAh): 5647

   Status Information:

   Cycle Count: 1

   Condition: Normal

   Battery Installed: Yes

   Amperage (mA): -337

   Voltage (mV): 11883

System Power Settings:

   Alternating current:

   System Sleep Timer (Minutes): 10

   The Disk Sleep Timer (Minutes): 10

   Monitor Sleep Timer (Minutes): 10

   Awakening the Power Supply Switch: No

   Awakening to Open Laptop: Yes

   Awakening to Connect to Local Network: Yes

   Current Source of Supply: Yes

   Rest Monitor Uses Darkening: Yes

   PrioritizeNetworkReachabilityOverSleep: 0

   Standby Delay: 4200

   Standby Enabled: 0

   Battery Charge:

   System Sleep Timer (Minutes): 10

   The Disk Sleep Timer (Minutes): 10

   Monitor Sleep Timer (Minutes): 2

   Awakening the Power Supply Switch: No

   Awakening to Open Laptop: Yes

   Rest Monitor Uses Darkening: Yes

   Reduce Brightness: Yes

   Standby Delay: 4200

   Standby Enabled: 0

Hardware Configuration:

   Sist. UPS Installed: No

AC Charger Information:

   Connected: Yes

   ID: 0x0100

   Voltage (W): 85

   Revision: 0x0000

   Family: 0x0085

   Serial Number: 0x0043d869

   Loading: Yes

In this cases the voltage displayed in "AC Charger Information" are wrong, because my MagSafe is 60W.

Someone can help me??