User Tools

Site Tools


electrical:12v:deep_cycle_battery

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:deep_cycle_battery [2021/04/18 17:32]
frater_secessus [Gel cell]
electrical:12v:deep_cycle_battery [2021/05/20 13:31]
frater_secessus [chain store batteries]
Line 141: Line 141:
  
  
-This type of VRLA battery stabilizes the electrolyte in an Absorbent fiberGlass Mat (AGM).+This type of VRLA battery stabilizes the electrolyte in an Absorbent fiberGlass Mat (AGM).   
 + 
  
   * PRO   * PRO
Line 162: Line 164:
  
 Also see [[http://www.cheaprvliving.com/forums/Thread-Intro-Solar-Questions?pid=192023#pid192023|SternWake's advice on charging AGM batteries]]. Also see [[http://www.cheaprvliving.com/forums/Thread-Intro-Solar-Questions?pid=192023#pid192023|SternWake's advice on charging AGM batteries]].
 +
 +Historical note:  the original use for AGM was for long-term stationary floating on shore power for backup/UPS purposes, as one finds in industrial backups or in the bases of cell towers. In long-term stationary use the liquid electrolyte in flooded batteries can stratify, causing degradation.  The electrolyte in AGM(((and gel)) types cannot move freely and so will not stratify.  Telcos and other industries typically replace the batteries after X years on float duty and sell them on the surplus market.  They are not made for frequent cycling but still may represent a good value.  
 +
  
 ==== Gel cell ==== ==== Gel cell ====
Line 191: Line 196:
 **Con**: Significantly less capacity than a real deep cycle bank; a group 27 wally world battery has about 1/2 the Ah capacity.  Drastically reduced longevity when cycled to 50% DoD as with most campervan usage patterns.   **Con**: Significantly less capacity than a real deep cycle bank; a group 27 wally world battery has about 1/2 the Ah capacity.  Drastically reduced longevity when cycled to 50% DoD as with most campervan usage patterns.  
  
 +
 +Further reading:  [[https://marinehowto.com/what-is-a-deep-cycle-battery/|this page]] with further explanation and teardowns to show the difference between deep cycle and "deep cycle" batteries. 
 ===== lithium chemistries ===== ===== lithium chemistries =====
  
electrical/12v/deep_cycle_battery.txt · Last modified: 2023/10/27 12:33 by frater_secessus