User Tools

Site Tools


opinion:frater_secessus:agm2lifepo4

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
opinion:frater_secessus:agm2lifepo4 [2025/07/05 00:42]
frater_secessus [shore power charging]
opinion:frater_secessus:agm2lifepo4 [2025/07/05 01:34] (current)
frater_secessus [shore power charging] high 14s
Line 134: Line 134:
  
  
-IF **other forms of shore power charging are available** or **shore power charging will last at least overnight** the [[electrical:converter|shore power charger]] can be a simple, inexpensive, single-stage charger set to a relatively low voltage (13.5v - 13.6v?)((converter output voltages can often be adjusted with switches or "pots" (potentiometers))) can often   This will allow near full charge and load support without overcharging.  Lower set voltages like 13.2v - 13.4v will support the battery from depletion but won't charge completely.((remember, there is no requirement to charge LFP to 100%))  If there is solar present that will also contribute. +IF **other forms of shore power charging are available** or **shore power charging will last at least overnight** the [[electrical:converter|shore power charger]] can be a simple, inexpensive, single-stage charger set to a relatively low voltage (13.5v - 13.6v?).((converter output voltages can often be adjusted with built-in switches or "pots" (potentiometers).  Consult the manual or online documentation))    This will allow near full charge and load support without overcharging.  Lower set voltages like 13.2v - 13.4v will support the battery from depletion but won't charge completely.((remember, there is no requirement to charge LFP to 100%))  If there is solar present that will also contribute. 
  
 If **shore power charging is the only source of charging** or if **time on the charger is limited** then a more aggressive, expensive, higher-capacity multistage converter/charger may be warranted.   If **shore power charging is the only source of charging** or if **time on the charger is limited** then a more aggressive, expensive, higher-capacity multistage converter/charger may be warranted.  
 +
 +If the converter is a **multi-stage charger hardcoded to Absorp in the high 14s** then a less aggressive converter will be required unless you plan to manually intervene, cutting off charging in the "upper knee".
  
 If the van will **be on shore power for an extended period** (days, weeks, months) then a small single-stage converter charger set to quite low voltage (13.2v?) would hold the battery at middling states of charge.  It only needs to be a bit bigger than the expected loads so gradual charging can occur.   If the van will **be on shore power for an extended period** (days, weeks, months) then a small single-stage converter charger set to quite low voltage (13.2v?) would hold the battery at middling states of charge.  It only needs to be a bit bigger than the expected loads so gradual charging can occur.  
opinion/frater_secessus/agm2lifepo4.1751676148.txt.gz · Last modified: 2025/07/05 00:42 by frater_secessus