Andrew,
I'm running an old Dell ps and its @ 11.4 volts no problems but am going to try the 10 ohm resisters to see if it comes up to 12v. I'm looking at some newr supplies that show multiple 12v rails. I'm guessing that these are totally separate and can run the stated amperage per rail?? 12v-1 19a 12v-2 19a 12v-3 19a I should be able to rune three chargers @ 19a each??
If this is the case I can get one of the new PC power supplies, run all three of my chargers with out having three power supplies running. I have some 4mm female bullets I'm using on one charger so I don't have to mod the case.
I love this thread, saved me some money not having to purchase an expensive power supply. With the newer chargers I just set the max draw to 6 amps and the old ps works just fine!