Internal battery for keeping date, time, etc.

Hi,
I am new to these discussions because up until this last year, my 2005 iBook G4 has had no problems. Currently, I have two issues going on. 1) The first I noticed was that the date and time had to be reset at start-up (warning message) 2) Then a grey box started coming up repeatedly telling me I had to restart computer. When I turned off Airport Extreme, this finally stopped, but now I can't get online with it. I know that Airport needs to be replaced, which is a big process I don't want to attempt at this point. The most I have done internally with a laptop has been to install additional memory. How difficult is it to replace the internal battery that keeps the date and time? Where is this battery located? Any help would be greatly appreciated! Thank you.
Terri

Hey hs,
So you have a 1.33 or 1.42 GHz machine?
If this is your machine the Airport card is a combo Airport Extreme/BlueTooth card and is internal. It can actually be swapped out but you have to know what you're doing.
So like Lyssa says "dongle".
Real time settings are kept in PMU and settings are held via a super capacitor ( typically 2.2 Farads) in a no power situation. This cap will hold settings for around 30 seconds. Lon enough for you to change a battery.
Richard

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