RV and vandwellers wiki

User Tools

Site Tools

Trace:
electrical:solar:shallow_cycling

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision 		Previous revision
Next revision Both sides next revision
electrical:solar:shallow_cycling [2021/06/06 13:38]
frater_secessus [how it works] 		electrical:solar:shallow_cycling [2023/02/06 12:43]
frater_secessus [single voltage charging]
Line 1: Line 1:
-Note:  this information should be regarded as experimental.  It is [[https://boondockplan.wordpress.com/tag/shallow-cycling/|being tested]] by secessus.+Note:  this information should be regarded as experimental.  It is [[https://boondockplan.wordpress.com/tag/shallow-cycling/|being tested]] by secessus.  Beginners may want to start with a [[electrical:solar:gentle_intro|gentle intro to solar]]. 
 + 
 +[[opinion:frater_secessus:car_micropower|Here]] is a trimmed-down version of this page.
  
 ====== microsolar without deep-cycle batteries ====== ====== microsolar without deep-cycle batteries ======
Line 7: Line 9:
 Benefits: Benefits:
  
-  * provides 12v power during daylight+  * extremely inexpensive 
 +  * provides 12v power and USB power during daylight
   * will never deplete the starter battery so you get stranded   * will never deplete the starter battery so you get stranded
   * actively maintains the starter battery   * actively maintains the starter battery
-  * the controller has built-in USB ports+  * taking power from the controller uses less power than using the car's ACCessory position, since other car electronics are not being energized. 
  
 Instead of deep-cycling like someone might in an RV, the idea here is the starter battery can be used but never dragged below 100% state of charge)).   Instead of deep-cycling like someone might in an RV, the idea here is the starter battery can be used but never dragged below 100% state of charge)).  
Line 26: Line 29:
  
   - a simple [[electrical:solar:charge_controller#shunt|shunt charge controller]] holds the starter battery at a medium Float voltage (13.2 - 13.8v, see notes [[electrical:solar:shallow_cycling#charging_voltages_and_starter_batteries|below]]) when charging, this is below the gassing point   - a simple [[electrical:solar:charge_controller#shunt|shunt charge controller]] holds the starter battery at a medium Float voltage (13.2 - 13.8v, see notes [[electrical:solar:shallow_cycling#charging_voltages_and_starter_batteries|below]]) when charging, this is below the gassing point
-  - power is //only// taken from [[electrical:solar:charge_controller#using_load_output|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. +  - power is taken from [[electrical:solar:charge_controller#using_load_output|the controller's 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. 
   - the controller's LOAD output disconnects when battery voltage falls to 100% ((LVD))  - no more power is provided   - the controller's LOAD output disconnects when battery voltage falls to 100% ((LVD))  - no more power is provided
   - the controller's LOAD output //re//connects when charging and battery voltage has risen to >= ~13.0v((LVR)) - power once again flows   - the controller's LOAD output //re//connects when charging and battery voltage has risen to >= ~13.0v((LVR)) - power once again flows
Line 135: Line 138:
  
  
 +===== getting more power into the cabin =====
  
  
 +see [[electrical:12v:alternator#isolator_without_a_house_battery|this article]]
electrical/solar/shallow_cycling.txt · Last modified: 2023/04/08 13:41 by frater_secessus

Page Tools

affilliate disclosure | the RVwiki runs on a virtual server from Phanes

Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Noncommercial-Share Alike 4.0 International
CC Attribution-Noncommercial-Share Alike 4.0 International Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki