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Author Topic: DC Converter  (Read 906 times)
Tikvah
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« on: November 17, 2012, 06:55:58 AM »

I was given a 12 Volt DC converter from an RV.  I really don't understand what it does, and can't imagine why I need it.

I have a large number of 12V items in my conversion, but everything will come directly from my 12V batteries. 

What is the purpose of the converter?
Should I use it in my conversion?

Dave



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I couldn't repair my brakes, so I made my horn louder.
1989 MCI-102 A3
DD 6V92 Turbo, Alison
Tons of stuff to learn!
Started in Cheboygan, Michigan (near the Mackinaw Bridge).  Now home is anywhere we park
luvrbus
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« Reply #1 on: November 17, 2012, 07:04:01 AM »

Rv's have a small battery bank and most use those because they are a charger also and the 12v load pulls directly from the unit not the batteries when plugged into 110v  

They still use that type today fwiw some of that type unit are good units with filters and fuse panels built in it is a call on your part where to use it or not but a battery charge will do the same thing but the 12v load come through the batteries those units work even without batteries 

good luck
« Last Edit: November 17, 2012, 07:32:52 AM by luvrbus » Logged

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belfert
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« Reply #2 on: November 17, 2012, 07:59:41 AM »

Many of the DC converters will ruin batteries if left connected long term.  They do make converters that are three stage so they won't ruin batteries.
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Brian Elfert - 1995 Dina Viaggio 1000 Series 60/B500 - 75% done but usable - Minneapolis, MN
TomC
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« Reply #3 on: November 17, 2012, 08:00:11 AM »

You would be better off just using a 2,000 watt inverter with three stage battery charging. More accurate and have read many posts of problems converters have. I've had my Trace 2,500 watt inverter for nearly 20 years without any problems and the bus is plugged in all the time.  Good Luck, TomC
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Tom & Donna Christman. '77 AMGeneral 10240B; 8V-71TATAIC V730.
Don4107
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« Reply #4 on: November 17, 2012, 08:20:56 AM »

What they said.  Even a 2 amp continuous charge WILL boil out even large batteries/banks.  A fully automatic multistage charger/inverter is best.  A fully automatic single stage  charger that turns completely off when charged is second best. Any charger that only tapers to a trickle is the last choice to leave hooked up continuously. Most (older) converters fall into the last category.

Don 4107 now MCI 5B too!
« Last Edit: November 17, 2012, 08:25:07 AM by Don4107 » Logged

Don 4107 Eastern Washington
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1968 GMC Carpenter
luvrbus
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« Reply #5 on: November 17, 2012, 08:53:48 AM »

Progressive is a good brand check the model number some even have a battery temp sensor they are not all bad.  It all depends on economics using what you have or doing a top notch inverter big battery bank and costly cables JMO
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Cary and Don
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« Reply #6 on: November 17, 2012, 08:59:57 AM »

Our GM came with a converter/charger.  We use it to charge the start batteries when it is in storage.  It has a big charger in it.  We have it on a timer so we can make it charge for an hour and shut off.

Don and Cary
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belfert
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« Reply #7 on: November 17, 2012, 10:48:52 AM »

Progressive does make some good converters/chargers.  I highly doubt the one pictured is one of the better ones.  Progressive has a Charge Wizard add-on that makes it a four stage charger.
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Brian Elfert - 1995 Dina Viaggio 1000 Series 60/B500 - 75% done but usable - Minneapolis, MN
Tikvah
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« Reply #8 on: November 17, 2012, 01:51:26 PM »

Thanks guys... that's what I needed to know.
It went directly to the trash can.

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I couldn't repair my brakes, so I made my horn louder.
1989 MCI-102 A3
DD 6V92 Turbo, Alison
Tons of stuff to learn!
Started in Cheboygan, Michigan (near the Mackinaw Bridge).  Now home is anywhere we park
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