Will this charge an AGM battery?
I need to replace the battery in my 2007 Flagstaff 5th wheel. Someone told me to make sure that the converter would charge an AGM battery. I have a World Friendship Corp converter, mod: WF8955AN. P...
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I don't know if the lower impedence (or whatever it is) is enough either. Maybe they count on the heavier duty construction or the better paste or something.
Generally, the lower the SOC at the start (except way low) the higher amps a battery will accept at any voltage. But then the battery reaches that voltage sooner at a lower SOC, and amps taper from there. Still makes for a faster recharge because the tapering amps are still higher than they would have been until you reach the SOC where the tapering curve is the same from then on.
You might have to start from 30% SOC to see the higher amps accepted. ISTR Mex likes to hit the batts with high amps so they go immediately to Absorption stage, which he calls "saturation charging" if I got that right.
To do that from 50% SOC, you would use about a 40% charging rate, but EG my AGMs say 27% for high limit.
I suppose you don't believe in the "five times faster" recharge either! Party pooper! :)
Generally, the lower the SOC at the start (except way low) the higher amps a battery will accept at any voltage. But then the battery reaches that voltage sooner at a lower SOC, and amps taper from there. Still makes for a faster recharge because the tapering amps are still higher than they would have been until you reach the SOC where the tapering curve is the same from then on.
You might have to start from 30% SOC to see the higher amps accepted. ISTR Mex likes to hit the batts with high amps so they go immediately to Absorption stage, which he calls "saturation charging" if I got that right.
To do that from 50% SOC, you would use about a 40% charging rate, but EG my AGMs say 27% for high limit.
I suppose you don't believe in the "five times faster" recharge either! Party pooper! :)
