Ask iBAM: Powerbook Battery Issues

8 years ago in Ask iBAM by Brent | 2 Comments

Fellow iBAM community member Ken, is having some issues with his Powerbook battery and sent me a quiestion for Ask iBAM. Here’s his question:

I have a powerbook G4, info below, and wanted to see if there was something I’m doing wrong to cause my battery problems. I bought a new battery because I thought the last one was getting old and causing the symptoms: no matter how many times I calibrate, it won’t charge past 43 or so percent. So, I’m having the exact same issues with the new battery. I’ve tried to reset the pram and the power management thing, but no luck.

Any ideas???

Thanks for any help.

Model Name: PowerBook G4 12″
Model Identifier: PowerBook6,8
Processor Name: PowerPC G4 (1.2)
Processor Speed: 1.5 GHz
Number Of CPUs: 1
L2 Cache (per CPU): 512 KB
Memory: 1.25 GB
Bus Speed: 167 MHz
Boot ROM Version: 4.9.0f0
Serial Number: 4H5151A2RJ7

Sudden Motion Sensor:

State: Enabled
Version: 1.0

Battery Information:

Charge Information:

Charge remaining (mAh): 1576
Charging: No
Full charge capacity (mAh): 4209

Health Information:

Cycle count: 2
Battery Installed: Yes
Amperage (mA): -1296
Voltage (mV): 11661

System Power Settings:

AC Power:

System Sleep Timer (Minutes): 0
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 30
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 LAN: Yes
Wake On Modem Ring: Yes
Display Sleep Uses Dim: Yes

Battery Power:

System Sleep Timer (Minutes): 5
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 1
Dynamic Power Step: No
Reduce Processor Speed: Yes
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): 0
Connected: No
Charging: No

I figured this was a good one for the mega iBAM community mind to tackle. Any thoughts, ideas or suggestions?

Thanks in advance

– Brent

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    The EXACT same thing is happening to me on my MBP! I was starting to think that I was going insane or something. Have you found any solution to this? My battery is charging to the full state of the new battery, however for me, its as if OSX is “caching” the available battery capacity or something. It still dies after about 30 minutes on a full charge with the new battery… What's interesting to me is this “UPS Installed”. Not sure what that is, but it's a no for me too… Someone please help!!!!

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