Differences

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--- electrical:12v:alternator_charging_rates [2023/09/10 17:15]
frater_secessus [estimating DC-DC charging]
+++ electrical:12v:alternator_charging_rates [2023/09/10 17:25] (current)
frater_secessus [estimating combiner charging]
@@ Line 2: / Line 2: @@
-====== How much will by battery charge by alternator? ======
+====== How much will my battery charge by alternator? ======
 This should be easy, right?
@@ Line 9: / Line 9: @@
 We know the time part because we're the ones driving.  But the charge rate part can be hard to predict with any certainty;  this is especially true for combiner ("split charger") charging.
 ===== TLDR =====
@@ Line 66: / Line 65: @@
       * in the broad "flat" portion of the voltage curve (20%-80 state of charge) current will likely stabilize around 0.2C.  We could use 0.2C as our average rate.  10Ah replaced.
+==== in the real world ====
+In most installs this variability isn't a major issue:
+  * combiner charging is commonly paired with solar charging (also highly variable!)
+  * alternator charging is often a backup or "nice when you can get it" charging source.  Exception:  there are [[electrical:12v:mandatory_solar|scenarios that depend on it]].

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