Becker TRAFFIC ASSIST Z200 - Manual (Page 117)

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> Completely discharge the battery (leave the unit switched on with no power suppply until it automatically switches off).
> Remove the four rubber covers
from the screw holes.
> Unscrew and remove the four housing screws using a small cross-slot screwdriver.
> Lever off the rear of the housing using a flat-blade screwdriver (levering at the slits at the side of the housing).
> Lever off the battery (bonded to the circuit board) using a flat-blade screwdriver.
> Pull out the plug of the batttery connecting cable.
Note:
Do not reconnect a unit that you have opened to the power supply.
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