5 Replies Latest reply: Jun 22, 2012 6:57 PM by chingoza
Jean1005 Level 1 Level 1 (0 points)
Battery Information:

Model Information:
Serial Number: SMP-bq20z951-3964-2a6b
Manufacturer: SMP
Device name: bq20z951
Pack Lot Code: 0000
PCB Lot Code: 0000
Firmware Version: 002a
Hardware Revision: 000a
Cell Revision: 0100
Charge Information:
Charge remaining (mAh): 1016
Fully charged: No
Charging: No
Full charge capacity (mAh): 4596
Health Information:
Cycle count: 2
Condition: Good
Battery Installed: Yes
Amperage (mA): -2195
Voltage (mV): 10795

System Power Settings:

AC Power:
System Sleep Timer (Minutes): 0
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 10
Automatic Restart On Power Loss: No
Wake On AC Change: No
Wake On Clamshell Open: Yes
Wake On LAN: Yes
Display Sleep Uses Dim: Yes
GPUSwitch: 2
Battery Power:
System Sleep Timer (Minutes): 1
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 1
Wake On AC Change: No
Wake On Clamshell Open: Yes
Display Sleep Uses Dim: Yes
GPUSwitch: 2
Reduce Brightness: Yes

Hardware Configuration:

UPS Installed: No

AC Charger Information:

Connected: No
Charging: No

MacBook Pro, Mac OS X (10.5.8), MacBookPro5,1
  • stedman1 Level 9 Level 9 (62,050 points)
    Hi Jean1005: The negative number indicates that your battery is discharging. This is perfectly normal if you are running on battery.

    Hope this helps
    Stedman
  • jtotheizzoe Level 1 Level 1 (0 points)
    I am seeing a negative amperage on my battery when I am plugged into the power adapter. Green light on, full charge showing. Here's my current system profiler stats:

    Model Information:
    Serial Number: W0043P6M5BX0A
    Manufacturer: SMP
    Device name: bq20z451
    Pack Lot Code: 0000
    PCB Lot Code: 0000
    Firmware Version: 0201
    Hardware Revision: 000a
    Cell Revision: 0157
    Charge Information:
    Charge remaining (mAh): 6769
    Fully charged: Yes
    Charging: No
    Full charge capacity (mAh): 6824
    Health Information:
    Cycle count: 3
    Condition: Normal
    Battery Installed: Yes
    Amperage (mA): -1365
    Voltage (mV): 12299



    This MBP is a refurb 15" i5, exactly 2 days old. It seems to me that I shouldn't have a negative amperage if I am running off the power adapter.
  • eww Level 9 Level 9 (52,975 points)
    Your battery shows a negative amperage whenever it isn't being charged. When it reaches full charge, charging stops until the battery gradually drains to below 95% of full charge. This is normal and as designed. Charging will restart when the battery gets below 95%.

    Message was edited by: eww
  • mdshaonimran Level 1 Level 1 (0 points)

    Battery Information:

     

      Model Information:

      Serial Number:    D86104608S1DGDLAB

      Manufacturer:    SMP

      Device Name:    bq20z451

      Pack Lot Code:    0000

      PCB Lot Code:    0000

      Firmware Version:    0406

      Hardware Revision:    0002

      Cell Revision:    0158

      Charge Information:

      Charge Remaining (mAh):    1827

      Fully Charged:    No

      Charging:    No

      Full Charge Capacity (mAh):    6363

      Health Information:

      Cycle Count:    342

      Condition:    Normal

      Battery Installed:    Yes

      Amperage (mA):    -4

      Voltage (mV):    11229

     

    ** Current battery charge: 29%

     

    and the battery isn't charging, it's showing the green light. I doubt this is not the way it was supposed to be. what can be the possible reason?

  • chingoza Level 1 Level 1 (0 points)

    restart charge 95% up