NEC VERSA SX User Manual page 167

Why do certain PC cards cause my battery life to
drop noticeably?
Certain hard disk cards and wireless radio cards
consume more power than others and can impact battery life. When not
using any PC card, pop it part of the way out of the slot to save power.
If my NEC Versa SX Series system is docked in the
NEC Versa Dock and I'm using a LAN card, the card does not work.
You probably have an address conflict between your
PC LAN card and your Docking Station. Check the manual that came
with your PC card for alternate addresses and use CardWizard or
Windows 95 Device Manager to reset the address.
Frequently Asked Questions C-7