My spare Toshiba 4015 (2+ yrs old ) is loosing time on a regular basis. I have changed the main battery because it finally went dead. My manual say there are 2 more small batteries inside:The RTC and a small backup battery. but don't explain how to change them. Is this somethiing I can do myself so I don't get charged $100.+ to change a $2 battery.
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