electrical:solar:shallow_cycling
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electrical:solar:shallow_cycling [2018/06/16 20:48] frater_secessus [non-cycling] |
electrical:solar:shallow_cycling [2018/06/16 20:54] frater_secessus [how it works] |
==== how it works ==== | ==== how it works ==== |
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- a simple [[electrical:solar:charge_controller#shunt_controller|shunt charge controller]] holds the battery at a mild Absorption voltage (14.0, - 14.2v) when charging, just below the significant gassing point | - a simple [[electrical:solar:charge_controller#shunt|shunt charge controller]] holds the battery at a mild Absorption voltage (14.0, - 14.2v) 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 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); see discussion below |
===== shallow-cycling ===== | ===== shallow-cycling ===== |
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//Shallow-cycling// is a more aggressive approach, allowing for a bit of power after sundown. It is most **suitable for starter batteries with removable cell caps**. | //Shallow-cycling// is a more aggressive approach, allowing for more power in the daytime and some power for use after sundown. It is most **suitable for starter batteries with removable cell caps**. |
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The charging setpoint is set somewhat higher, ~14.4v. This will result in minor outgassing and a bit more power (**76.18W** using the panel data above). [[electrical:12v:charging#watering_batteries|Battery watering]] is mandatory. | The charging setpoint is set somewhat higher, ~14.4v. This will result in minor outgassing and a bit more power (**76.18W** using the panel data above). [[electrical:12v:charging#watering_batteries|Battery watering]] is mandatory. |
electrical/solar/shallow_cycling.txt ยท Last modified: 2023/04/08 13:41 by frater_secessus