Forum Discussion
landyacht318
Apr 14, 2017Explorer
Obviously written by somebody who actually uses a hydrometer, and is not of the "float equals full' mentality.
The fully off grid guys don't get to give their batteries a rest and plug in for several days when their outing is over. That can make up for much battery abuse, a luxury the off grid guys do not have.
Set controller to 'maximum smoke'. I like it.
I'm also on the AGM bandwagon, so no hydrometer for my battery.
When amps taper to 0.5% of absorption voltage is how I judge 'nominally full' or acceptable full.
But the true reset to maximum potential remaining capacity requires a high amp recharge from 50% or less charged, then holding Absv until amps taper to 0.5%, or less. Then if possible, float overnight at 13.6v. Usually ammeter reads 0.0x by morning, and goosing voltage back to 14.7 usually has amps taper back to 0.0x again, and this is what I consider true bursting full, on this AGM.
I am over 500 deep cycles and my single 90 Ah battery at the moment is 22Ah from full, 12.56v under a 7.1 amp load.
In terms of voltage held for X AH removed under X load, this 90Ah battery is outperforming 230Ah worth of flooded marine battery, and has already outlived them cycle wise and time wise.
The fully off grid guys don't get to give their batteries a rest and plug in for several days when their outing is over. That can make up for much battery abuse, a luxury the off grid guys do not have.
Set controller to 'maximum smoke'. I like it.
I'm also on the AGM bandwagon, so no hydrometer for my battery.
When amps taper to 0.5% of absorption voltage is how I judge 'nominally full' or acceptable full.
But the true reset to maximum potential remaining capacity requires a high amp recharge from 50% or less charged, then holding Absv until amps taper to 0.5%, or less. Then if possible, float overnight at 13.6v. Usually ammeter reads 0.0x by morning, and goosing voltage back to 14.7 usually has amps taper back to 0.0x again, and this is what I consider true bursting full, on this AGM.
I am over 500 deep cycles and my single 90 Ah battery at the moment is 22Ah from full, 12.56v under a 7.1 amp load.
In terms of voltage held for X AH removed under X load, this 90Ah battery is outperforming 230Ah worth of flooded marine battery, and has already outlived them cycle wise and time wise.
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