Need a checkup on building a EEPROM reader from a person with a background on electronics. Can I use two leds in series instead of a 5.1V zener diode rated at 1W for a EEPROM xbox original reader? Can a 3.0V coin battery or 4X1.2V AA batteries @ 4.8V be used as a external powersupply directly? Would 4.8V have too high of mAh or current for the EEPROM chip? I plan to use a serial to RJ45 with a connector to ethernet as a cable. I am using a bread board to create the circuit. I plan to use the materials I already have.