RV and vandwellers wiki

User Tools

Site Tools

Trace:
electrical:12v:lvd

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:12v:lvd [2018/06/23 16:51]
frater_secessus [common LVD setpoints] 		electrical:12v:lvd [2020/11/20 11:13]
frater_secessus [Low Voltage Disconnect (LVD)]
Line 3: Line 3:
 A low voltage disconnect is used to stop loads from dragging a battery bank below a given voltage (Vlvd). A low voltage disconnect is used to stop loads from dragging a battery bank below a given voltage (Vlvd).
  
-The simplest way to implement an LVD is to wire all loads go through the LOAD output of the charge controller, and set the controller's Vlvd.  If system load is heavier than the LOAD output can provide, one may use: +The simplest way to implement an LVD is to wire all loads go through the LOAD output of the charge controller, and set the controller's Vlvd.  If the controller has no LVD or if the load is heavier than the LOAD output can provide, one may: 
-  * a stand-alone LVD with higher current rating (more expensive)+ 
 +  * use a [[https://amzn.to/3m2OTp3|stand-alone LVD]]
   * or run loads off a [[electrical:12v:relay|relay]] triggered by the LVD (less expensive)   * or run loads off a [[electrical:12v:relay|relay]] triggered by the LVD (less expensive)
  
  except the [[electrical:inverter|inverter]], due to the heavy current draw.  The inverter will have its own internal LVD.  except the [[electrical:inverter|inverter]], due to the heavy current draw.  The inverter will have its own internal LVD.
 +
  
 ===== common LVD setpoints ===== ===== common LVD setpoints =====
Line 22: Line 24:
  
  
-[[electrical:12v:lifepo4_batteries_thread|LiFePO4]] nominal 12v banks can be safely drained to 80-90% Depth of Discharge.  That point is something like 12.0v.((http://rvwiki.mousetrap.net/doku.php?id=electrical:12v:lifepo4_batteries_thread#notable_voltage_reference_points))+[electrical:12v:deep_cycle_battery#lithium_chemistries[electrical:12v:lifepo4_batteries_thread|LiFePO4]] nominal 12v banks can be safely drained to 80-90% Depth of Discharge.  That point is something like 12.0v.((http://rvwiki.mousetrap.net/doku.php?id=electrical:12v:lifepo4_batteries_thread#notable_voltage_reference_points))
  
 ===== challenges ===== ===== challenges =====
electrical/12v/lvd.txt · Last modified: 2023/09/06 10:54 by frater_secessus

Page Tools

Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Noncommercial-Share Alike 4.0 International

affilliate disclosure

CC Attribution-Noncommercial-Share Alike 4.0 International Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki