4 Replies Latest reply: Apr 6, 2012 11:44 AM by BGreg
diane fokas Level 1 Level 1 (0 points)

Hi i am having a problem with my powerbook G4 15in 1.67ghz 1.5gb ram 128gb hdd 64mb graphics, the problem with this laptop is when i unplug the the charger it will shut off i checked the battery indicator on the bottom of the laptop the green lights up barily and is only on one light circle it only lights up when you hold it down is the battery dead also the indicator has picture of a battery with an (X) when you are on the computer desktop. should i buy a new battery for this machine.

  • Kenichi Watanabe Level 7 Level 7 (30,465 points)

    Yes, it sounds like you need a new battery.  These types of rechargeable batteries are designed for a certain number of recharge cycles. 

  • diane fokas Level 1 Level 1 (0 points)

    so i should buy a new battery than  here is what system profiler say about the battery.

    Battery Information:

     

      Charge Information:

      Charge remaining (mAh):          0

      Charging:          No

      Full charge capacity (mAh):          10000

      Health Information:

      Cycle count:          0

      Condition:          Good

      Battery Installed:          Yes

      Amperage (mA):          0

      Voltage (mV):          0

     

    System Power Settings:

     

      AC Power:

      System Sleep Timer (Minutes):          60

      Disk Sleep Timer (Minutes):          10

      Display Sleep Timer (Minutes):          20

      Dynamic Power Step:          No

      Reduce Processor Speed:          No

      Automatic Restart On Power Loss:          No

      Wake On AC Change:          No

      Wake On Clamshell Open:          Yes

      Wake On LAN:          Yes

      Wake On Modem Ring:          Yes

      Display Sleep Uses Dim:          Yes

      Battery Power:

      System Sleep Timer (Minutes):          10

      Disk Sleep Timer (Minutes):          10

      Display Sleep Timer (Minutes):          2

      Dynamic Power Step:          Yes

      Reduce Processor Speed:          No

      Automatic Restart On Power Loss:          No

      Wake On AC Change:          No

      Wake On Clamshell Open:          Yes

      Wake On Modem Ring:          No

      Display Sleep Uses Dim:          Yes

      Reduce Brightness:          Yes

     

    Hardware Configuration:

     

      Clamshell Closed:          No

      UPS Installed:          No

     

    AC Charger Information:

     

      AC Charger (Watts):          65

      Connected:          Yes

      Charging:          No

  • Kenichi Watanabe Level 7 Level 7 (30,465 points)

    Yes, it seems like the battery has reached its cycle limit.  Here's one source, assuming I have the type of PowerBook right.

     

    http://eshop.macsales.com/item/NewerTech/BAP15AL52RS/

  • BGreg Level 6 Level 6 (17,500 points)

    Based on the battery status you posted, note the full charge capacity and the cycle count. When a lithium battery goes bad, one indicator is that it logs silly values. So, for example, the full charge capacity should be around 3800mAh, and cycle count could be in the 300+ range. As Kenichi Watanabe suggested, a new battery is in order, and OWC is a good source. I've bought several batteries from them for our Powerbooks, and they have performed well.