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Old 11-27-2013, 06:54 AM   #15
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You can easily upgrade your 7300 Parallax to a 3 stage converter. The upgrade includes an intelligent charger:

Converter Upgrade

It will keep you from cooking your batteries when plugged in during storage. There are a number of threads on AirForums that cover this issue. I did the upgrade myself over 2 years ago shortly after I bought the trailer. I leave the trailer plugged in all the time when not in use. I've never had an issue with the batteries overcharging.
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Old 11-27-2013, 06:32 PM   #16
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Quote:
Originally Posted by PharmGeek View Post
Mine per AS manual is "parallax 7300".... Not sure yet if this is single or what
Thanks PharmGeek...I went out to the trailer today and there it was right in front of my face...same make & model
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Old 11-27-2013, 07:07 PM   #17
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I have found that using a Battery Minder/Tender is the safest alternative to trickle charge the batteries while in storage whether you have a single or triple stage converter. Put the trailer in storage mode and there is no worry of a surge affecting electronics. Turn the propane off. Vent opening depends on the humidity levels. As far as the fridge, Dometic makes clips that will allow you to prop the doors open to allow air circulation.
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Old 11-27-2013, 08:56 PM   #18
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ill have to hold off on the 3 stage upgrade...money tree just too low! Luckily I dont have mine stored off site so it is easy for me to keep an eye on the battery from the panel in the AS here and there and plug in as needed....but would like to just keep it plugged in - no fuss....

Am I to presume that the consensus is very strong that 1 stage converter very often burns up batteries? I do recall someone saying they never had a problem, but many more voices say they did...and there is a basic explanation for it it seems...
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Old 11-27-2013, 09:07 PM   #19
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I've got the factory single stage in 2012 FC. It's 1 1/2 years old and is always plugged in (not in store mode). Batts stay at 100. % on trickle. Batts fine, I've never had to add water, anything. I have the Bogart, Trimetric battery monitor installed showing battery condition at all times.
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Old 11-27-2013, 09:15 PM   #20
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PharmG,
Do you have interstate or AGM Lifeline ? If You have Lifeline, your single stage converter will ruin the $600 batteries within a very short time. Replacement lifeline AGM batterie (2) will cost you about $700 plus $80 shipping . Bottom line, if interstate, just watch the water level & top regularly until you are ready for 3 stage converter upgrade and if Lifeline AGMs, the cost of upgrading now is a fraction of the cost of new AGMs. Just saying.....
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Old 11-27-2013, 09:16 PM   #21
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We shut the reefer off along with the propane at the tanks. I have a foam pad that I wedge between the doors to the reefer and tie them off. They are wedged open for circulation. Have no mildew issues and after just a spring wipedown all's good for the summer.
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Old 11-27-2013, 09:19 PM   #22
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im pretty sure those batteries are not AGM...recall a green top on them off the top of my head...will double check...good point on AGM's though! pretty sure mine are interstate
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Old 11-27-2013, 09:19 PM   #23
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Mine is never stored for very long- just put it in "store" mode and leave the refrigerator door open-
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