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Replacing the internal battery :
The internal battery is heavy. Use caution when handling the heavy batteries.
A - Pull off the front panel by pressing on the both side
B - Disconnect the battery block by separating the
connectors (never pull on the wires).
C - Remove the metal protection cover in front of the
battery (three screws or two screws for 3U models).
D - Pull the plastic tab to remove the battery block and
replace it.
Warning: take care not to reverse the po (red) and - (black) when connecting the batteries as this
will destroy the device.
