Gira 2330 02 Notice D'installation Et D'utilisation page 37

To replace the battery, proceed as follows:
1) To do this, release the locking mechanism with a screwdriver and turn
the smoke detector anticlockwise.
2) Remove the old battery from the compartment and disconnect the
connector from the battery connection.
3) Connect the new 9 V battery to the battery connection and insert the
battery in the battery compartment.
4) Reinsert the smoke detector into the mounting plate or 230 V base
and lock in place by turning gently clockwise.
Insert battery
The smoke alarm device cannot be secured on the mounting plate or
base unless the battery is inserted.
5) Carry out a function test.
Only replace the old battery with a new battery of the same
type.
Dispose of the old battery in an environmentally-friendly way.
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