Battery not charging, sometimes not detected

I have a Powerbook G4 ALU 15" 1.5 GHz and almost every time, it says the battery is not detected. It just has an "X" in the upper menubar. Now if i take out the battery and replace it, it will show up, but it will sit at 0% and will not charge.

I can take the battery out while the laptop is on and it will stay on, so ruling out the DC-in board is an option.

As for the battery itself, normally System Profiler says the battery has a cycle count of 398. Other times it can't seem to figure out what i have installed. If i leave the battery out for more than 5 min, it resets the time on the PB. Coconut battery reports my battery as this...

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Current Battery Charge: 0 mAh

Maximum Battery Charge: 1909 mAh

0%

Current Battery Capacity: 1909 mAh

original Battery Capacity: -1 mAh

-1909

Additional Info

Battery-Loadcycles: 0

Age of your Mac: 84 Months

Charger Connected: Yes

Battery is Charging: No

Also, when i take out the battery and place the battery back in, the charger light goes from green to orange. 10 min later it goes back to green.

System Profiler says this about my battery too...

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Battery Information:

Charge Information:

Charge remaining (mAh): 0

Charging: No

Full charge capacity (mAh): 1909

Health Information:

Cycle count: 0

Condition: Good

Battery Installed: Yes

Amperage (mA): 0

Voltage (mV): 4003

AC Charger Information:

AC Charger (Watts): 65

Connected: Yes

Charging: No

I have also tried to run the PB battery updater but it tells me that the battery is not properly installed and will not update it.

So i am at a loss on what is wrong with this laptop. Hopefully someone out there is ifixit land can help me.

Update

Now, i just took out my battery and put it back in, now i have the old readings from before. This is what both Coconut Battery and System Profile say about my battery...

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Coconut Battery...

Current Battery Charge: 0 mAh

Maximum Battery Charge: 1945 mAh

0%

Current Battery Capacity: 1945 mAh

original Battery Capacity: 4400 mAh

44%

Additional Info

Battery-Loadcycles: 398

Age of your Mac: 84 Months

Charger Connected: Yes

Battery is Charging: No

----

System Profile...

Battery Information:

Charge Information:

Charge remaining (mAh): 0

Charging: No

Full charge capacity (mAh): 1945

Health Information:

Cycle count: 398

Condition: Good

Battery Installed: Yes

Amperage (mA): 0

Voltage (mV): 4076

AC Charger Information:

AC Charger (Watts): 65

Connected: Yes

Charging: No

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