Archived from groups: alt.sys.pc-clone.dell (More info?
No, the reserve battery serves the same purpose as a CMOS battery on a
desktop - backs up the CMOS when the system is powered off.
> I have just bought a D400 , and the battery life is coming in at about
> 2hrs. I've seen someone talking about a reserve battery. Is that the
> same as a second battery ? What are my options here ?
> Any help appreciated.