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Old 09-23-2016, 09:15 AM   #1
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Agm battery

Hello can agm batteries be used with the rockwood mini lites? Will the inverter work? Charging ?

Thx
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Old 09-23-2016, 10:33 AM   #2
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Why wouldn't an AGM battery work?

Perhaps you could Google that information yourself to find how it directly affects TT usage.

Choosing the Best RV Battery: Which is Right for You?
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Old 09-23-2016, 10:35 AM   #3
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I have , not finding much. Thought I read some where that the inverters would not charge them correctly.

Thx for reply
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Old 09-25-2016, 06:23 PM   #4
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I have 2 AGM's on our 2109S, one up front and one on the rear bumper.
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Old 09-25-2016, 06:32 PM   #5
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My lite has a G27 AGM, heavy beast but it does what I need it to.
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Old 09-25-2016, 09:59 PM   #6
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AGM charging routine is generally very close to the wet cell routine and as long as you have a modern 3 or 4 stage charger, they should present NO problem. They DO like to be treated well though for best life so:
1. Always charge them fully after use. If you don't charge them to 100% their capacity will deteriorate over time.
2. Don't leave them unattended and plugged in at float charge levels for weeks at a time. Charge them fully...then disconnect at the negative terminal if you won't be visiting for a while. The SELF discharge rate is about 1/10th of the wet cell rate and they can sit for a LONG (6 months+) time unattended and hold their charge.
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Old 09-25-2016, 10:28 PM   #7
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Quote:
Originally Posted by winstmk View Post
Hello can agm batteries be used with the rockwood mini lites? Will the inverter work? Charging ?

Thx
Rockwoods don't have INverters, unless a previous owner installed one.

They do have CONverters, which recharge the battery when plugged into shore power or a generator.

All RVs come with CONverters while few come with INverters.
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Old 09-25-2016, 10:57 PM   #8
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AGM battery works great

I have an AGM battery in my camper for 7 months. It is great. Just use the disconnect switch when stored. It will keep the charge for 3 months and lose maybe 5% of reserve. There is no maintenance.
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Old 09-25-2016, 11:30 PM   #9
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AGM batteries have slightly different charge characteristics then standard wet cells... that being said, I have used an AGM as a start battery in my tow vehicle for nearly 4 years and it worked great... however this spring I changed tow vehicles and pulled out the AGM to use as an extra battery around the garage... my regular wet cell battery charger/maintainer did not seem to keep it charged all the way and I thought it was going dead on me.

I finally bought a specific AGM charger/maintainer early in the summer for about $60... for several days the AGM charger only showed a 50-75% charge, but this AGM charger/maintainer also desulfates and after about a week the battery finally showed 100% charge... I use the battery to power a portable hitch mounted winch setup that I sometimes use when cutting down the dead ash trees we have around the house. After I am done with it the AGM goes back on the charger/maintainer, where after an overnight charge it goes back to 100%.

My take is after this experience is that AGM are tough batteries, but when down for a season like over the winter in an RV, a specific AGM charger will probably get you the most out of the battery.

just my opinion based on my experiences with one AGM that is now almost 5 years old
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Old 09-26-2016, 06:31 AM   #10
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I have AGM batteries in both vehicles and our TT. Definitely a tough battery. The oldest is 6 years old in a '04 Jeep Grand Cherokee.


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