4x 1.2v battery is enough right?Want me to say it again, no.
According to the data sheet Vs has to be at least the same value as Vss. In your case it is less.
i use this schematicThat is not a schematic, that is a physical layout diagram and as such is useless for talking about the circuit.
You have no diodes, while that will not stop it from working it will cause problems / damage to the other components in the circuit.
where should i place the diode. i thought it has a diode already.