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opinion:frater_secessus:solar_not_charging [2023/09/04 22:58]
frater_secessus 		opinion:frater_secessus:solar_not_charging [2023/09/05 00:26] (current)
frater_secessus [charge-and-stop]
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 ====== My solar isn't charging ====== ====== My solar isn't charging ======
  
-Reminder:  a [[electrical:solar:charge_controller|solar charge controller]] +Reminder:  a [[electrical:solar:charge_controller|solar charge controller]] makes power
  
-  - makes power 
-  - up to its abilities under present conditions 
   - //when power is demanded// for [[electrical:12v:charging|charging]] or [[electrical:12v:loads|loads]]   - //when power is demanded// for [[electrical:12v:charging|charging]] or [[electrical:12v:loads|loads]]
 +  - up to its abilities under present conditions
  
- +In most cases the system is working as designed but the owner doesn't know it.  
-So why does it not make power sometimes?+
  
  
Line 19: Line 17:
  
  
 +==== charge-and-stop ====
  
 +Charge-and-stop usually charges to 14.2v or 14.4v then stops until nank voltage drops to 13.2v before restarting Bulk charging. This occurs because charge-and-stop does not use a Float setpoint.((Li doesn't need Floating in the lead-acid sense, but [[opinion:frater_secessus:electrical:12v:drop-in_lifepo4#mythyou_shouldn_t_float_lithium|it can still be useful]].))  
 +
 +Under very light loads this would result in cycling between 90% and 100% state of charge.  Because of [[electrical:12v:voltage_sag|voltage sag]] heavy loads might result in cycling between 95% - 100%.  
 +
 +If this is undesirable behavior you can set up a USER profile with whatever setpoints you wish ([[electrical:12v:drop-in_lifepo4#mythyou_can_t_charge_li_with_a_lead_battery_charger|suggested settings]]).
 ===== because the panels aren't receiving full sunlight ===== ===== because the panels aren't receiving full sunlight =====
  
Line 25: Line 29:
   * rainclouds   * rainclouds
   * inside a parking garage or under a tree, etc   * inside a parking garage or under a tree, etc
 +
 +
 +===== because the BMS has shut down charging =====
 +
 +...because of temperature extremes of [[opinion:frater_secessus:lifepo4_charging_voltage|excessive charging voltage]]. (lithium only)
 +
  
 ===== because something has actually gone wrong ===== ===== because something has actually gone wrong =====
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 ====== further reading ====== ====== further reading ======
-   + 
-   + 
-  * [[electrical:solar:status|is my solar working]]+  * [[electrical:solar:status|is my solar working?]] 
  
opinion/frater_secessus/solar_not_charging.1693868308.txt.gz · Last modified: 2023/09/04 22:58 by frater_secessus

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