AC/DC Chargers (Full Version)

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MYNAMEHERE -> AC/DC Chargers (5/28/2002 5:32:31 PM)

I was looking into getting a new charger at tower the other day and I realized that the really good chargers were all DC current. Why is this? Is there some kind of adantage over AC when charging a battery with a direcxt current. Another thing is there any thing you can use to get a DC charger to run off an outlet in your house instead of having to get a car battery to charge your RC's batteries.
:confused:



Red Scholefield -> AC/DC Chargers (5/28/2002 5:42:53 PM)

All batteries are charged with DC. Chargers that run from AC convert the charge voltage/current to DC. If you have a DC charger and want to use it on AC you will have to buy a DC power supply, a device that gives you DC from AC line. Such devices are available on line from a number of sources.

Here are three on line sources at good prices.

http://www.efunctional.com/new-pyramid-power-supplies.html

http://www.millionbuy.com/caudio-kit-sup.html

http://www.valcoelectronics.com/



hebertjj -> AC/DC Chargers (5/29/2002 9:19:57 PM)

As I've noted in other threads, an old PC pwr supply makes a great, cheap, (but ugly) supply. I scrounged an old 486 supply for $0 that had a 7 amp rating on the 12V side and put a 15 ohm, 15 watt (5 watt will do, or a 10 ohm, 5 watt) power resistor across the 5 volt (black and red) wires to load the PS so it will come on. Just make sure the 12V side is rated for the amps needed for your charger.

Joel



Red Scholefield -> AC/DC Chargers (5/30/2002 2:35:06 AM)

A lot of people have done this with success. I haven't tried it because I haven't needed another supply. But the next time I run across a discarded computer I'm going to give it a try just to know more about it.



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