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electrical:solar:charge_controller

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electrical:solar:charge_controller [2024/07/02 02:48]
frater_secessus [sizing your charge controller] 		electrical:solar:charge_controller [2025/06/20 16:53] (current)
frater_secessus [single-stage chargers]
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   * **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.   * **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.
   * **Minimum input voltage** - a PWM controller will requires panel voltage ≥ battery voltage to charge.  MPPT controllers will usually require a bit more voltage headroom to start/run the MPPT algorithm.((although less common, //boosting// MPPT do exist that can increase incoming voltage in order to charge a higher-voltage battery bank))   * **Minimum input voltage** - a PWM controller will requires panel voltage ≥ battery voltage to charge.  MPPT controllers will usually require a bit more voltage headroom to start/run the MPPT algorithm.((although less common, //boosting// MPPT do exist that can increase incoming voltage in order to charge a higher-voltage battery bank))
 +  * **Maximum input current** is uncommon in standalone MPPT controllers but common in [[12v:sg_troubleshooting#must_i_use_the_ps_brand_s_proprietary_solar_panels|the controllers built into "power stations"]].  It is also a factor with PWM controllers. 
  
 ===== Types of charge controllers ===== ===== Types of charge controllers =====
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 Further viewing: Further viewing:
  
 +  * excellent [[https://www.youtube.com/watch?v=Ezh0ylkAyTw|teardown and analysis]] by Big Clive
   * [[https://www.youtube.com/watch?v=Fmfnxkh1IFo|basic setup]] by Scott   * [[https://www.youtube.com/watch?v=Fmfnxkh1IFo|basic setup]] by Scott
   * [[https://www.youtube.com/watch?v=v-iLu9DS558|setting up the LOAD functions]] by Scott   * [[https://www.youtube.com/watch?v=v-iLu9DS558|setting up the LOAD functions]] by Scott
electrical/solar/charge_controller.1719888511.txt.gz · Last modified: 2024/07/02 02:48 by frater_secessus

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