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--- rv:idling [2022/07/26 13:04]
frater_secessus [charging]
+++ rv:idling [2023/07/01 19:55]
frater_secessus [charging] 3 effects
@@ Line 5: / Line 5: @@
 Idling to charge is [[electrical:12v:alternator#effect_on_alternator|hard on the alternator]].
-Alternators are typically only ~50% efficient.  When the alt is pumping out 500w for your use **it is also creating 500w of heat**, cooking itself.  The easiest way to avoid excess alternator heat is only charge from the alternator while driving. This has two effects:
+Alternators are typically only ~50% efficient.  When the alt is pumping out 500w for your use **it is also creating 500w of heat**, cooking itself.  The easiest way to avoid excess alternator heat is only charge from the alternator while driving (engine rpm ~2,000). This has multiple effects:
   - the alternator spins fast enough that its own cooling blades become effective, and
-  - airflow from the forward motion of the vehicle blows away heat
+  - the alternator is running at its most efficient RPM((~6,000))
+  - airflow from the forward motion of the vehicle helps remove heat from underhood

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