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If the battery low symbol appears as soon as the Cambridge Z88 is switched on, the safest course of action is to replace the batteries as soon as possible. The computer should be switched off until new batteries have been obtained.


If you have a mains adaptor you can use it to power the Cambridge Z88 while you change batteries. See Appendix G - Using the mains adaptor.


Read the following procedure carefully, so that you can carry it out without pausing:

  1. Remove the new batteries from their packaging, and place them within easy reach on the right-hand side of the Cambridge Z88.

  2. Switch the Cambridge Z88 off by pressing both  Highlightlightgreylightgreyclasskey


    Image Added keys simultaneously.

  3. Place the Cambridge Z88 keyboard-down, and remove the lid of the battery compartment.

  4. Note the time, and calculate how long you have according to the table given on the previous page.

  5. Remove the four batteries from the battery compartment, if necessary tilting the Cambridge Z88 to slide the batteries out.

  6. Throw the old batteries away, to avoid confusing them with the new replacements.

  7. Place one of the new batteries at each end of the battery compartment, observing the polarity carefully. Place the remaining two batteries in an 'A' shape, and press down on the point of the 'A' so that they pop into place.

  8. Check that the batteries are all orientated correctly. There is now no longer any time pressure.

  9. Replace the battery-compartment lid firmly before turning the machine over again.


  10. Switch on, by pressing both  Highlightlightgreylightgreyclasskey


    Image Added keys simultaneously. The Cambridge Z88 should now be working, and the battery-low indicator will not be displayed.