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Post by ronc on Jan 25, 2021 14:46:33 GMT -5
I am installing a Xantrex Truecharge2 converter. It has setable maximum charge amps. The range is from 20 to 100. Those who have done similar ... what is the recommended charging level for AGM batteries ... seems to me that you don't want to get up in the high ranges, as the rig is only plugged in to 50 amp service. Thanks in advance.
Ron
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Post by Chuck on Feb 2, 2021 11:39:45 GMT -5
Here you go again spending my inheritance
I would think Ron that the converter would have a cut off point so it would not over charge the batteries, it should
The peak charging voltage for Gel batteries is 2.3 to 2.36 volts per cell, and for a 12 volt charger this works out to
13.8 to 14.2 volts, which is lower than a wet or AGM type battery needs for a full charge.
I would think that the Xantrex Truecharge2 converter has a regulator built in that can be set at a certain charge voltage ... I think I would call tem an ask the questions, they are more in tune with what their converter can or can not do ... As you say listen closely at what they are saying an make sure the BS meter dozen't peg to the right all the way over ...
Only my two cents
Chuck
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Post by ronc on Feb 2, 2021 14:54:15 GMT -5
this is updated (corrected) info.
I have since learned that the recommended charge amps for an AGM battery bank is 20% of the battery banks capacity (30% max). In my case, each battery has 210 amps at 20 hour discharge rate ... two batteries means my 12V AGM battery band provides 420 amps @ 20 hour discharge rate. 20% of that is 84 amps (with a 30% max of 126 amps). The Xantrex I have can provide a max of 100 amps ... so that's my answer, it’s about 24%, right in the middle of optimal and maximum. The converter actually has an AGM setting, which will auto select the correct voltage .. so I think I've got it.
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Post by Chuck on Feb 3, 2021 14:23:12 GMT -5
Cool Ron, So all your fears were answered an at least I have learned something as well, tnxs Chuck
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