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Old 02-28-2010, 11:34 AM   #11
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By the way WFCO voltage test is with the all loads disconnected ( batteries included ) how did you measure the voltage. If you did not disconnect every thing ( like you would with a WFCO converter ) maybe this why your converter is providing in your opinion an low voltage.
Also on the Parallax Model 6345 the voltage is adjustable I suspect this is true for the
7465 also. The adjustment is in the cabinet . Maybe a check with Parallax would provide
you with more information in this regard.

Gary
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Old 02-28-2010, 11:45 AM   #12
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Soory I posted twice.
By the way, the WFCO voltage test is performed with the batteries disconnected. Under what conditions did measure the voltage?
Also the Parallax Model 6345 volage is adjustable ( adjustment is inside the cabinet ) i think if you check with Parallax you may find out that the 7465 has the same feature.
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Old 02-28-2010, 12:42 PM   #13
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Originally Posted by mbtelguy View Post
Soory I posted twice.
By the way, the WFCO voltage test is performed with the batteries disconnected. Under what conditions did measure the voltage?
Also the Parallax Model 6345 volage is adjustable ( adjustment is inside the cabinet ) i think if you check with Parallax you may find out that the 7465 has the same feature.
I'm going by Parallax's own documentation which states that the max voltage for the 7465 is 13.6 volts. It is a self contained unit and not adjustable. Sorry, but 13.6 volts is not good enough no matter how you slice it or who makes the charger.

Either a WFCO or a PDI with Charge Wizard will be ordered tomorrow.
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Old 02-28-2010, 04:12 PM   #14
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If you dry camp and/or use solar I would say that you must get the higher voltage to properly care for the batteries. Hopefully you can sell the Parallax and recoup some of the cash.

If Forest River is watching.. PLEASE offer a "dry camping option". Swap the parallax for a WFCO or PDI, pre-wire for solar panels and install a 1500-2000W true sine wave inverter in the mix.

I bet you could do the whole deal for less than $1000 net new cost and you could charge us $2000K easy. I have an EE degree and this crap is complicated for me!
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Old 02-28-2010, 05:11 PM   #15
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If you dry camp and/or use solar I would say that you must get the higher voltage to properly care for the batteries. Hopefully you can sell the Parallax and recoup some of the cash.

If Forest River is watching.. PLEASE offer a "dry camping option". Swap the parallax for a WFCO or PDI, pre-wire for solar panels and install a 1500-2000W true sine wave inverter in the mix.

I bet you could do the whole deal for less than $1000 net new cost and you could charge us $2000K easy. I have an EE degree and this crap is complicated for me!
I like the way you think Steve.... You should be designing motorhomes!
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Old 02-28-2010, 07:33 PM   #16
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Steve, I agree this is a very complex issue, with many points of view. My point is that a person should not make a decision based on one factor eg. voltage, in fact battery manufactures will tell you the true indication is specific gravity. Also battery temp. is also a major factor when charging. That is why the RS3000 has a battery temp sensor.
I think best upgrade for dry camping would buy the best batteries eg. true deep cycle and a separate charger.
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Old 02-28-2010, 08:06 PM   #17
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Originally Posted by mbtelguy View Post
Steve, I agree this is a very complex issue, with many points of view. My point is that a person should not make a decision based on one factor eg. voltage, in fact battery manufactures will tell you the true indication is specific gravity. Also battery temp. is also a major factor when charging. That is why the RS3000 has a battery temp sensor.
I think best upgrade for dry camping would buy the best batteries eg. true deep cycle and a separate charger.
Mbtleguy,

You seem to be really hung up on specific gravity. Specific gravity is the best way to make sure that each cell is healthy and it's true state of charge but I fail to see what your problem is with my decision along with 1000s of other RVrs who have decided to care for their batteries in the best way possible and by battery manufacturer and industry standards by choosing to change to a quality 3 stage charger from a 2 stage charger.

I have made the switch to Trojan T-125 6volt deep cycle batteries over a year ago. I have 260 watts of solar panels on my roof. The charge controller for the solar panels is a true 3 stage providing 14.4 volts when needed to care for my batteries.

So exactly what is the issue with wanting and requiring the same type of charging quality out of my converter/charger? Are you saying that a 2 stage is sufficient over a 3 stage charger? If so why?

The long and short of it is that it is MY money I am spending, not yours. It is MY battery bank and I feel I am making a very good and sound decision in how I am maintaining it. My decision is not based on only "one factor" but research I have done using data gathered from industry leaders like Trojan, Exide, Xantrex, WFCO as well as the testimonials of many other RVrs who have been doing the dry camping thing for much longer than I have and those who have also made the decision to change to 3 stage chargers. Are you saying ALL those people are wrong?

It's obvious from your posts you don't agree with my decision, I get it. However it is my decision, my rig, my $1200 battery bank that I have to pay for if it gets screwed up and for that fact I am going to spend what it takes based on the best information out there how to care for it, not just one factor like specific gravity!

For what it's worth a WFCO or PDI 3 stage converter/charger only runs about $200 give or take, slightly more than I have paid for 1 battery in my 6 battery bank. I think it is a very wise decision to pay the money for a good 3 stage charger and stop killing them with the worthless converter supplied in my rig. And yes I do own a hydrometer and yes I do check SG on a normal basis.

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Old 02-28-2010, 08:50 PM   #18
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It looks like I touched a nerve.

First I do not think at any time did I suggest that you not buy a new converter.

My main objective was to introduce other factors so that others reading this forum (which you have suggested a number of times may not understand the complexity) have food for though.

I sure you agree that readers of this or any forum should not follow blindly facts present on a forum.

It is unfortunate that you have taken my comments suggestions personally
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