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Old 07-31-2016, 11:59 PM   #1
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Don't leave your trailer plugged in because of the battery?

My friend who used to work at the service dept of an RV dealership told me the one downside to keeping your rig plugged in at home all the time is that its bad for the battery. He said this for two reasons: 1) the inverter on the Jayco trailers will not send the proper voltage to the battery to charge it fully and 2) it never stops charging it.

He recommended a battery tender device for when you just have it plugged in all the time and only need to use the lights, etc. once in a while.

Thoughts?
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Old 08-01-2016, 04:08 AM   #2
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This "RV tech?" is wrong. It is amazing how many of the RV places don't KNOW what they should. And disseminate this faulty information.

Most newer RV's (~2008 and newer) have a 3-stage converter (not inverter). It is an EXCELLENT charger. It does bulk charge, maintenance charge and float charge.

Mine has been plugged in at home for years. Have added less than an ounce of water to the battery in all that time. No problems.

Go back and advise that "tech" to learn how these things work before giving people bad information.
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Old 08-01-2016, 04:23 AM   #3
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I agree. My rig has been plugged in with me in it full time since August 2010 and I still have the same 2 batteries. They are 6 volt T-105's that I put in the first week of full time. Their water level is checked every spring and fall and they are still going strong.
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Old 08-01-2016, 04:46 AM   #4
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I also think your friend is wrong. I keep my RV plugged in all the time and did the same with my boat for all the years I had it with no negative effects on my batteries.
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Old 08-01-2016, 05:14 AM   #5
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Your tech is wrong. The smart chargers in most rv's now do a much better job of saving your batteries than the old battery tenders.
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Old 08-01-2016, 05:22 AM   #6
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keeping it plugged in at home or at a seasonal site is no difference. I think your tech friend is wrong. I leave mine plugged in since we got it and I'm on the same battery for the past 3 years.
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Old 08-01-2016, 05:36 AM   #7
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In fairness to the Tech, we do not know when he worked in the industry. If he worked on RVs a long time ago his advice may have been prudent. Today however, the smart chargers/converters installed in the new units are really good at what they do, charging batteries.

Old school, you will boil the batteries as they were nothing more than 12v convertors. I had a 30 pound 12v transformer in a '91 Georgie Boy motorhome.

I have a 3 stage PD Smart charger/converter with Charge Wizard in my current trailer. I have it plugged in 24/7, except when on the road, and the same battery that was there when I got the trailer 4 years ago is still going strong.

Depending on the charger/converter installed in your RV will determine if it is safe to keep it plugged in and on charge all the time or not.
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Old 08-01-2016, 05:37 AM   #8
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As in most RV dealership personal... they know nothing about BATTERIES, the POWER CONTROL Center (how it operates electronically), and absolutely nothing about SOLAR, but say they do..... It is OK to leave your late model TT plugged in.
Don

Here is how current SMART POWER CONTROLLERS in TT's handle their charging responsibilities.
Attached Thumbnails
BATTERY - ELECTRICAL - PD4000 Battery Charging Stats.jpg  
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Old 08-01-2016, 06:22 AM   #9
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Not to mention that the really good aftermarket smart chargers, such as the Progressive Dynamics models with Charge Wizard, run a desulphate cycle every so often (I think it's every 24hrs for 20min) which further extends the life and performance of your battery(ies) by cleaning the plates with temporary higher voltage. I think of it like a regen cycle on a diesel.
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Old 08-01-2016, 07:02 AM   #10
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Quote:
Originally Posted by tnchuck100 View Post
This "RV tech?" is wrong.
Go back and advise that "tech" to learn how these things work before giving people bad information.
[QUOTE=Marcm157;433883]I also think your friend is wrong. QUOTE]

Quote:
Originally Posted by norty1 View Post
Your tech is wrong.
[QUOTE=RollingDownTheHighway;433891]I think your tech friend is wrong.
QUOTE]

Quote:
Originally Posted by Mustang65 View Post
As in most RV dealership personal... they know nothing about BATTERIES, the POWER CONTROL Center (how it operates electronically), and absolutely nothing about SOLAR, but say they do..... It is OK to leave your late model TT plugged in.
Don
Not sure, but I think you're tech may be wrong.....
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