Differences

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--- electrical:solar:charge_controller [2022/04/30 17:17]
frater_secessus [single-stage chargers]
+++ electrical:solar:charge_controller [2022/04/30 17:21]
frater_secessus [specs]
@@ Line 10: / Line 10: @@
   * **rating (or "size")** - this is usually the maximum output the controller can produce (charging + loads).((for technical reasons with PWM this will also be the *input* current limit))
-  * **Maximum input voltage** - the highest voltage the controller should ever see from the solar array.((it is common to leave ~20% margin))
   * **12v/24v/48v** - this refers to the nominal voltage of the battery bank it will be charging.
+  * **Maximum input voltage** - the highest voltage the controller should //ever// see from the solar array.((it is common to leave ~20% margin))  NOTE: a 50v input max does //not// mean a PWM controller can make efficient use of mismatched panel/battery voltages; that requires MPPT.  See [[#how_to_choose|how to choose]] below.

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