powerbook g4 titanium battery question

Hello, it's my first message and I'm spanish, patience please

I have and old, but powerful, powerbook g4 667 (gigabit ethernet) with leopard 10.5.2 and runs well, but the battery is crazy:

Capacidad de plena carga (mAh):26564 (full capacity charge)


It's possible to fix? I read that reseting power management, but doesn't seems to work. It's is possible that leopard is causing this? the battery problems begin when install leopard.

Thanks for all, and see you later.

Thanks for this, I'll answer when i have news.

nothing, i have to buy a new?