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Old 02-20-2005, 05:49 PM   #46
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Quote:
Originally posted by GReddy
do you have to use resistors? what happens if you dont use them?
By the time your done getting your power supply, buying the necessary transistors and spending time soldering stuff together and testing it, your better off just buying a 12-13 volt power supply for $30.
Unless you have all the equipment already and know what your doing, the time spent doing this almost negates what you save.
I got my Pyramid for $35 shipped.
Unless of course the reason for doing it is to build it yourself. In that case, have at it.
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Old 02-20-2005, 08:02 PM   #47
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I've been building these power supplies for over 2 years now, for some of my racing buddies as well as for sale @$10 each.

Depending on the PC powersupply in question, they put out between 5.0 to 8.0A at 11.5V. They are extremely stable for me, and works 24hrs a day without complain. They only thing is not to overload them. I tried 9A on my charger and it began to smell lol.

I'm desperately interested in knowing how to jack up the voltage to 13.8V since my latest charger does not have step up ability and struggles to charge 8 cells.
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Old 02-20-2005, 08:17 PM   #48
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Quote:
Originally posted by lee82gx
I've been building these power supplies for over 2 years now, for some of my racing buddies as well as for sale @$10 each.

Depending on the PC powersupply in question, they put out between 5.0 to 8.0A at 11.5V. They are extremely stable for me, and works 24hrs a day without complain. They only thing is not to overload them. I tried 9A on my charger and it began to smell lol.

I'm desperately interested in knowing how to jack up the voltage to 13.8V since my latest charger does not have step up ability and struggles to charge 8 cells.
The easiest way to bump the voltage on the 12v line is to buy a power supply with adjustable potentiometers internally for voltage adjustment.

Brands with the adjustment pots are:

Tagan
Superflower
OCZ
TTGI
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