Häfele DT 700c Instructions D'utilisation page 56

The clock continues to run for up to 5 minutes without batteries.
• The batteries should therefore be changed quickly.
• If necessary, reset the time with the MDU 110 mobile data transfer unit after changing the
batteries.
Prerequisites:
1. Loosen screw and pull the cover off
upwards.
3. Insert new batteries. Ensure the polarity is
correct.
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2. Remove the batteries.
4. Replace the cover and tighten the screws.