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Old 11-06-2009, 12:38 PM   #1
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Dimension with an AGM Battery?

I would like to install some AGM batteries to replace my house batteries. I am under the impression, however, that my Dimension 1000 inverter/charger cannot handle an AGM battery? It appears the charger will over charge the AGM when conditioning the battery? The charge cannot exceed 14.6 volts but the Dimension cannot be adjusted down? So now what do I do; replace the inverter?? Seems expensive.
I have 07 Vectra.
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Old 11-06-2009, 01:04 PM   #2
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I suspect you have a Dimensions 2000 inverter/converter. At least that is what Winnie installed in the Vectra & Horizons. If you look in the owners manual on page 16 of the Dimensions unit it tells you how to set the DIP switches (located on top and rear right of inverter/converter) for either wet or sealed cell batteries and larger battery banks.
I believe that AGMs can handle the conditioning charge. However you are best off to get that information from the manufacturer of the batteries you decide to go with.
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Old 11-06-2009, 02:22 PM   #3
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I purchased some AGM Platinum brand batteries from Sears a couple of years ago. Great batteries. However, like most (or all) AGMs, they cannot tolerate high voltages. If your existing inverter/charger cannot be modified to eliminate (or tone down) the de-sulphuring cycle, you'll probably have to develop another strategy. AGMs offer great performance and are very easy to maintain. As a result, it might pay to find a work-around. Best of luck.

Jack
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Old 11-07-2009, 11:09 AM   #4
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If you have a proper 3-stage charger/converter.. AGM's are "Full Up" about 0.1 or 0.2 volts lower than a flooded wet cell. Just so you know

I have received messages and assurances from several folks who use AGM's with progressive Dynamics Charge Wizard converters.. No problems reported (These only come in flooded wet cell and do a conditioning charge automatically) I have my AGM's on a Xantrex Prosine set to AGM
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Old 11-07-2009, 12:06 PM   #5
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Does anyone know if there is a way to "turn off" the conditioning mode on the Dimension Inverter? It seems to me everything else would be fine but it is the conditioning mode that the AGM batteries don't need or want.
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Old 11-08-2009, 10:07 AM   #6
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I have 4 Lifeline 6 volt AGM's in our 07 Vectra. They have been in for 2.5 years now. I have the Dimensions 2000 watt inverter/charger. I have the little selector switch set for Sealed Lead Acid under 400 amps, my batteries are slightly over 400 amps. I do have a solar system connected to the batteries also. My batteries have the same capacity as when I installed them.

Jim
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