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--- electrical:12v:mandatory_solar [2020/04/02 21:54]
frater_secessus [Is solar mandatory?]
+++ electrical:12v:mandatory_solar [2024/02/09 18:21] (current)
frater_secessus reorder
@@ Line 1: / Line 1: @@
 ====== Is solar mandatory? ======
-Solar isn't //mandatory//, particularly if one has Lithium, carbon-foam, or similar battery chemistries that are not bothered by sitting at [[electrical:12v:psoc|partial state of charge]].  Solar is incredibly useful for nomads with lead-chemistry batteries. There should be a good reason why they would plan a build without //some// solar.  Even just [[electrical:solar:builds#w|a small amount]].  Some reminders:
+Solar isn't //mandatory//.  Here are some cases where it might not be worth the trouble:
+  * the camper has Lithium, carbon-foam, or similar battery chemistries that are not bothered by sitting at [[electrical:12v:psoc|partial state of charge]] and there is enough charging capacity to meet needs.
+  * the camper has lead batts but will be sitting on [[electrical:shore_power|shore power]]
+  * the camper has lead batts but  is equipped with a [[electrical:12v:b2b|DC-DC charger]] will be driven for several consecutive hours at least a couple times a week.(([[electrical:12v:directcharginglfp|an isolator might suffice]] for lithium banks))
+The rest of this document assumes the camper is equipped with normal lead-chemistry batteries (flooded, AGM, gel etc).
+Solar is incredibly useful for nomads with lead-chemistry batteries. There should be a good reason why they would plan a build without //some// solar.  Even just [[electrical:solar:builds#w|a small amount]].  Some reminders:
-  * solar is silent and can be discreet
-  * solar works when the sun shines
-  * solar doesn't wear out or get used up in the normal sense.  No maintenance required!
   * solar brings higher voltages to battery charging, which is healthy for them.  Lead-acid batteries that don't get a full, higher voltage [[electrical:12v:charging#absorption_stage|Absorption stage]] will not be fully charged.  Which will [[electrical:batterycide|kill them]].
   * Absorption stage is high voltage and decreasing current, which is exactly what solar does well
   * This higher-voltage solar charging [[electrical:12v:alt_and_solar|can be combined]] with the higher-current nature of alternator/isolator charging for maximum power and minimum expense.
+  * solar is silent and can be discreet
+  * solar works when the sun shines
+  * solar doesn't wear out or get used up in the normal sense.  No maintenance required!
 ===== getting by without solar =====

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