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--- electrical:12v:eternal_absorption [2021/05/05 10:58]
frater_secessus [workarounds]
+++ electrical:12v:eternal_absorption [2021/05/05 11:04]
frater_secessus [gotchas]
@@ Line 22: / Line 22: @@
-  * if duration setpoint is maxxed then [[electrical:12v:eternal_absorption|set Vfloat == Vabs]].  Absorption duration will effectively be "until the sun goes down".
+  * if duration setpoint is maxxed then **set Vfloat == Vabs**.  Absorption duration will effectively be "until the sun goes down".
   * **charge at a lower current** (charging minimum).  While [[opinion:frater_secessus:charging_faster|overall charging will take about the same amount of time]], Bulk's share of that time will increase and [[electrical:12v:charging#absorption|Absorption will take somewhat less time]].
   * **Absorb at a higher((but still manufacturer-sanctioned)) voltage** (Vabs), this will decrease Absorption duration.  Keep a close watch on water levels for flooded batts, and also mind the max allowable voltage for AGM/Gel.
@@ Line 50: / Line 50: @@
   * calcium-enhanced batteries (typically starter batteries and some hybrid "marine" batteries) can be damaged((positive grid corrosion)) by long periods of excess voltage.    The question is which is worse for them:  chronic undercharging or grid corrosion from higher voltage.  Pick your poison.
+For these reasons, it would be optimal to watch the bank's tail current ([[opinion:frater_secessus:endAmps|endAmps]]) to see when he bank is fully charged.  If this occurs shortly before sundown (an hour, for example) then it's nearly optimal.  If endAmps is reached hours before sundown you likely don't need Eternal Absorption anymore and can return to normal charging.

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