nicad charger help

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http://forum.allaboutcircuits.com – hi help im confused. my nicad charger went bang(duff nicad) and burnt out some components to the point i cant tell the original value. the transformer is a center tap 240v in and rared at 11.6v@18va. the relay coil appears to be 3v 25ohm0.12amp on the pull in coil. the nicad pack is 9.6v. on the attached schematic i have worked out(maybe) the zener diode should be 3v to match the relay coil and the resistor to drop the voltage to the relay coil should be 55ohms. im confused as to why the green led with a resistor value of 110ohm works out to be from a 6v source yet i think i have 9.6 returni (Embedded)