Battery Charging Indicator Light Is Out

I own a tangerine iBook, OS X 10.4 operating system.
For a year or so charging the battery while the power cord in has been a "fussy" project -- sometimes it wouldn't charge until I moved the "plug-in-to-the-computer" end of the cord out ever so slightly. I bought a new power cord, but that didn't change things.
I don't have internet at hom, so most days I take my laptop and power cord to the public library and use the library's WiFi to look for work. Yesterday I came home, plugged in the power cord, and no battery charging light. I "jiggled" the cord, got out the old power cord and tried that one, then I tried a different electrical outlet. No battery charging indicator light, and the battery is discharging while I use it with the power cord.
I'm assuming this is an electrical problem that I can't fix, but can anyone fix it? When the battery runs out, will the iBook keep running when plugged into an electircal outlet, or is the electricity not getting to where it need to be?
I've had problems with the battery not charging before, and once I was advised to reset something, but I've alway had the indicator light on, so now I don't know if power is getting to my computer.
I went to About This Computer, clicked on Power and saw this:
AC Charger Information:
AC Charger (Watts):    0
Connected:    No
Charging:    No
which looks like it doesn't think I'm connected to any power source.

Yes, if resetting the PMU doesn't work, it does sound like the DC-in board has failed.
It is not an easy repair (especially for someone who describes herself as "NonTech."
http://www.ifixit.com/Guide/Installing-iBook-G3-Clamshell-DC-In-Board/114/1
Not exactly cheap, either:
http://www.ifixit.com/iBook-Parts/iBook-Clamshell-DC-In-Board/IF149-023?utm_medi um=frame_module_bottom&utm_term=ibook_g3_clamshell&utm_source=ifixit_guide&utm_c ontent=related_products

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Wouldn't this be better in the Macbook Pro forum than the Pages forum:
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Message was edited by: jbrinskele

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Check out this Knowledgebase Article from buddinggeek.
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Battery Charging Indicator Light Is Out

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