Voltera EV25 Manuel D'utilisation page 19

3. Use the screwdriver to unfasten the 4 screws on the PCBA. Remove the
PCBA to expose all wire connectors. Release the middle wire connector
in the first row. Cut the tape and remove the battery. Wrap the connector
of the battery immediately with insulating tape in order to avoid short
circuit caused by contact of both wire terminals.
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