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Old 06-26-2013, 02:50 PM   #15
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I just got off the phone with Airstream Technical support and was told that the convertor that came in my 2000 Safari would not over charge or hurt my Omni battery.

He informed me that the only time they have saw the convertor they use damage a battery was with a dual battery system that had one bad battery causing the good battery to over charge.
Omni=Lithium?

If it's a P-Lax it's junk, our 7455 fried the Factory batteries while on the dealer lot, and the second pair 18mos later.
Two sets of bad batteries, I don't think so.

IOTA DLS 55a IQ4 and two Lifelines, 5 Seasons and counting.

Bob
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Old 06-26-2013, 03:42 PM   #16
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We leave our's plugged in at home 24/7. Refer is on and has ice stored in the freezer to balance the run times.

As suggested above, I do use the stock battery disconnect switch to disconnect the batteries from the converter so as not to overcharge them.

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Old 06-26-2013, 03:46 PM   #17
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Quote:
Originally Posted by LFC View Post
I just got off the phone with Airstream Technical support and was told that the convertor that came in my 2000 Safari would not over charge or hurt my Omni battery.

He informed me that the only time they have saw the convertor they use damage a battery was with a dual battery system that had one bad battery causing the good battery to over charge.
My 2000 Safari has it's original converter, but it is not the old Univolt. (Randy at Best told me what I have, but I can not remember) I do not know what year they stopped using the Univolt, but no longer.

I use a single wet cell deep cycle battery (cheap). I have had it connected continuously to 120v shore power, except for travel time and a few days of camping without hookups, for more than a year. I have not had any problems with the electrolyte evaporating excessively. I checked it last week and the battery did not need any water, though I did add water once last winter. I have checked the voltage output of the converter when the battery is fully charged, and find that it drops to an appropriate low charge level, 12.5v by my meter.
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Old 06-26-2013, 04:24 PM   #18
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I found that leaving the power connected will accelerate the evaporation of the battery fluid. As long as you monitor that fluid level and keep it above the plates, you should be okay. I learned the hard way and did not and prematurely shortened the life of the first set of batteries.

Typically if the trailer is going to sit a week in the drive, I disconnect the power and do not plug it back into power until 48 hours prior to departure. At that point I'll turn on the fridge and get it cooled down.

Jack
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Old 06-26-2013, 05:06 PM   #19
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One of the reasons I ditched the stock charger/converter from my brand new trailer was to avail myself of the advantages of a more modern set-up (Iota DLS-55) that doesn't just recharge, but moves to "float" the battery. So, my trailer is always plugged into a 30 amp outlet.
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Old 06-26-2013, 05:34 PM   #20
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The cheap converter / charger in our 2007 International CCD did not work properly from day one. I installed a Zantrex 30 amp inverter / charger with full size battery cables in the front road side storage under the dinette seat. This is a proper multi-stage float charger and allows full 30 amp 120 volt AC power off the batteries. I can run all the AC stuff, but the big loads - air conditioner, microwave, coffee maker won't go for long on just the two deep cycle batteries. We pretty much always have a Yamaha 30 amp 120 volt generator with us as we're usually boondocking. Agree the stock converter / chargers seem to be quite minimal and cheap.
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Old 06-26-2013, 06:41 PM   #21
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AS plugged in while in storage

Unless you travel frequently, and want the trailer "ready to go" why waste the energy keeping it plugged in 24/7? I put the trailer plugged into a timer which turns on for about a two hour period in order to keep the battery charged. Wolf146
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Old 06-26-2013, 07:56 PM   #22
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Unless you travel frequently, and want the trailer "ready to go" why waste the energy keeping it plugged in 24/7? I put the trailer plugged into a timer which turns on for about a two hour period in order to keep the battery charged. Wolf146
I'm about to buy my first AS....

Interested in answer to this question - perhaps to run ventilation fan in summer to expel trapped heat?
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Old 06-26-2013, 09:09 PM   #23
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I left my 2005 AS Interstate plugged in 24/7. Just sold it with the original LifeLine 12 volt. Also had a 125w roof solar panel.
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Old 06-26-2013, 11:29 PM   #24
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I left my 2005 AS Interstate plugged in 24/7. Just sold it with the original LifeLine 12 volt. Also had a 125w roof solar panel.
Interstates have an inverter/charger, not the Parallax single-stage converter that trailers get.
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Old 06-27-2013, 12:33 AM   #25
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Plugged in 24/7.

Hi, my batteries are plugged in 24/7 to a Battery Tender Plus. My shore line cord is only plugged in a few days before a trip. And my refrigerator is only used on trips and emptied when we get home.
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Old 06-27-2013, 05:13 AM   #26
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Almost two years ago I bought the biggest Optima deep cycle they made I first had it in a 1999 19' Bambi and now it's in a 2000 25' Safari....both had original convertors and were pretty much kept plugged in with no problems so far.
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Old 06-27-2013, 11:29 PM   #27
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I permanently mounted a plug in on my battery to quickly connect and disconnect a "Battery Tender". This will charge the battery to a certain level and then go to a trickle charge to maintain the battery at a peak charge without overcharging. I don't plug in the trailer itself to 120v. With the set up the way I have it, the fantastic fans can run (and close when it rains), and can use the 12V lights if need be. I do plug into 120V the night before we head out in order to cool the fridge. Never had a problem with this setup.
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Old 06-28-2013, 06:08 AM   #28
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Quote:
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Unless you travel frequently, and want the trailer "ready to go" why waste the energy keeping it plugged in 24/7? I put the trailer plugged into a timer which turns on for about a two hour period in order to keep the battery charged. Wolf146
It doesn't use that much, and it's nice to not have to unload things like mayonnaise, chocolate for s'mores, etc. Plus the power in our area seems to go out too often, and it's nice to have a backup fridge ready ro go. But we also go camping at least once a month from spring to fall...so it depends on your definition of frequently, too.
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