i got a circuit diagram related to battery protection against over discharging
But the above diagram is configured as per 12 volts but i need to design it with 6 volts so please help me to redesign it with proper component values . . . thanks
The reason for ZD1 (zener diode) and the TL431, is to prevent the coil from getting overmuch current. You adjust the TL 431 until you get your desired range of operation.
However since your system is 6V, ZD1 could be unnecessary. Or else you can change it to a diode pointing downward. This will drop 0.6 V, and the TL431 will not need to dissipate as much power.