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--- electrical:12v:intro [2023/02/06 12:49]
frater_secessus [use patterns]
+++ electrical:12v:intro [2023/06/25 10:36]
frater_secessus [using power] added 24v section
@@ Line 115: / Line 115: @@
 //Using// power is the simplest part.  It's so simple the newbie may find themselves overdrawing from the available power.   A [[electrical:12v:lvd|low voltage disconnect]] (LVD) is one way to keep from overdischarging the bank.
+===== higher bank voltages =====
+Although 12v house banks are most common there are use cases where higher bank voltages (24v, 48v, etc) may be desirable:
+  * when some big DC load demands it (DC minisplit aircon?)
+  * when 12v inverter size approaches 3000w((sometimes seen on propaneless "all electric" setups))
+  * when someone stumbles into a great deal on a higher-voltage pack (Leaf battery fell off a truck)
+  * when the vehicle has a 24v alternator, as found in some commercial vehicles like buses or box trucks
+Challenges:
+  * limited options charging from normal 12v alternators <-- even more niche than the inverter market
+  * requirement to buck back down for "normal" 12v house loads
+  * requirement for higher solar array voltages.

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