I need help with the battery Icon

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http://askubuntu.com – I have a Toshiba Satellite L645D running Ubuntu 12.10 and it seems like Ubuntu like some other distros (Nadia, Debian) won't recognize my battery and I don't know the reason for that, it won't show the level of charge and if I have my laptop plugged in with the AC adapter, I have tried this "Settings > Power - Show battery status in the menu bar" as Always but it won't show me the level of charge at any moment i think the whole OS won't recognize the battery at all, help please, I'm desperate because every time I'm running the laptop with the battery eventually will discharge completely and tu (HowTos)