Differences

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--- electrical:solar:shallow_cycling [2020/07/08 15:48]
frater_secessus [single voltage charging]
+++ electrical:solar:shallow_cycling [2020/07/08 15:51]
frater_secessus [how it works]
@@ Line 23: / Line 23: @@
   - a simple [[electrical:solar:charge_controller#shunt|shunt charge controller]] holds the battery at a mild Absorption voltage (14.0, - 14.2v, see notes [[electrical:solar:shallow_cycling#charging_voltages_and_starter_batteries|below]]) when charging, just below the significant gassing point
   - the controller's LOAD output disconnects (LVD) at 100% SoC (~12.7v)
-  - the controller's LOAD output //re//connects (LVR) at ~13.0v);  see discussion below
+  - the controller's LOAD output //re//connects (LVR) at ~13.0v)
-  - power is //only// taken from the controller's LOAD output;((or from a circuit control by a relay on the LOAD output)) this ensures the starter battery is never discharged below [[electrical:12v:lvd|the intended setpoint]]
+  - power is //only// taken from the controller's LOAD output;((or from a circuit control by a relay on the LOAD output)) this ensures the starter battery is never discharged below [[electrical:12v:lvd|the intended setpoint]].  Since the load is disconnected below 12.7v the battery cannot be run down by loads.
 === Low Voltage Reconnect (LVR) setpoint ===

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