powerbook g4 is dying on me - battery?

[flat6]

My PowerBook G4 is hurtin, right now I can only run it off the power adapter, not off the battery. There's no battery LEDs lighting up on the back. It's refusing to charge apparently. When it's running (say, in OS X) and I unplug the power cord, it immediately shuts off.

I've installed coconutBattery on it and it says...

Current Battery Charge: 0 mAh (0%)
Maximum Battery Charge: 2745 mAh

Current Battery Capacity: 2745 mAh (62%)
Original Battery Capacity: 4400 mAh

Battery-Loadcycles: 305
Age of your Mac: 52 Months
Charger connected: Yes
Battery is charging: No

So, it's the battery? Any easy fix beside getting a new battery? What's the best place to get one?

Thanks

 

[Eidorian]

Definitely sounds like a bad battery.

http://eshop.macsales.com/shop/powerbook/batteries/