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Old 02-08-2015, 06:30 PM   #43
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Randy should have that info .Did you check his website?


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Old 02-08-2015, 07:29 PM   #44
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Quote:
Originally Posted by rgwatkin View Post
So, I have a 2012 28ft FC with a Paralax 7300 installed. After three years my Lifeline AGM batteries are a little tired and I want to replace them but not until I replace the converter. My current converter is rated for 55amps as installed from the factory. After reading this thread I have a couple of questions. 1) Is there anything technically wrong with the Magnatech/Paralax upgrate? It appears to be an easy install without getting into a large reconfiguration project. 2) who/where do you buy the upgrade kit? 3) I did read here that someone installed a Powermax PM4-60 4 stage but did have to make some modifications. Is the advantage of the 4 stage so great over the three stage?
Your Lifelines are 'tired' of being improperly charged for 3 years. You can thank your Parallax for killing them prematurely by neither providing them a full charge or a proper float charge!!! NO PRESENTLY AVAILABLE CONVERTERS have the exact required charging profile that Lifelines require. Some, like Progressive Dynamics with Charge Wizard come close, but they are not spot-on either!!

Lifelines require a bulk/absorption charge of 14.2-14.4VDC (@77F) and a float charge of 13.2VDC at the same reference temperature. Part of the problem with converters is that their charging voltage profiles are set and NOT ADJUSTABLE for different types of batteries, nor do they vary their charging voltage with the ambient temperature of the batteries (temperature compensation), the duration of the absorption cycle (battery bank size), or the amperage of the float cycle (should be 0.5 amps/100 amp/hours of battery capacity).

Will they work....sure....and far superior to the Parallax unit. Some folks have Lifelines going on 7 years using either Progressive Dynamics or IOTA converters....which is great! There are other, better alternatives, but as with anything that is superior......there is a greater cost involved.
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Old 03-02-2015, 10:00 PM   #45
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Just received my boondocker. Thank you all for the info.
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Old 03-04-2015, 12:10 PM   #46
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Just ordered the powermax pm4b-60 for my 2013 30 foot signature and am interested in what modifications I will need to make if any. Thanks
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Old 03-04-2015, 12:13 PM   #47
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What is the difference between the boondocker model and the powermax pm4b-60
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Old 03-04-2015, 12:24 PM   #48
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Ok they are the same just a manufacturer title.
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Old 03-04-2015, 06:16 PM   #49
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Going on right now tonight, wish me luck. Just posted to my instagram feed.



The install is a little different on the 27FB but about the same.
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Old 03-04-2015, 07:00 PM   #50
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Can someone please explain how they wired the 120V? Also what is the bonding common line?

A little frustrated that the directions for this thing are 3 sentences.

It was easy enough to figure out the two wires from the original to the plus and neg but the common one I'm not sure I follow on that.
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Old 03-04-2015, 09:15 PM   #51
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Never mind I figured it out.
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Old 03-04-2015, 09:47 PM   #52
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Ahhhhh, the PD-4655 is a direct replacement for the Parallax that you removed. Comes with a very nice new DC fuse block too.....even has little red LEDs on it to show you which fuse you just blew...no more fuse tester!!!
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Old 03-05-2015, 12:03 PM   #53
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Installed now. Time will tell.
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Old 03-09-2015, 07:54 AM   #54
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Looks good to me.
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Old 03-09-2015, 11:56 AM   #55
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I'll tell ya what, bending that copper to the chassis ground was a pain, lol. But I'm happy with it, and my Airstream didn't burn down, which is always a plus.
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Old 03-09-2015, 08:53 PM   #56
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I feel your pain! If you think solid copper wire is tough to bend......try THIS stuff............ I use the solid copper bar for connections where welding cable would be too sloppy. Things like shunt-to-battery, shunt to terminal block, inverter fuse to disconnect switch, etc. Makes for a nice clean installation.
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