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--- electrical:12v:drop-in_lifepo4 [2022/06/05 13:36]
frater_secessus [myth: you must use DC-DC for alternator charging Li]
+++ electrical:12v:drop-in_lifepo4 [2022/06/16 23:08]
frater_secessus [myth: you have to charge Li to 100%]
@@ Line 162: / Line 162: @@
 Lead batteries require fully charging to 100% state of charge (SoC) but lithium batteries do not.  Charging them fully at higher voltages can cause cells to become further out of balance.  //Leaving// them at 100% SoC can cause degradation.((lithium metal "plating"))
-[[https://www.mdpi.com/2076-3417/8/10/1825|This paper]] found that charging only 50% SoC resulted in extension of
+[[https://www.mdpi.com/2076-3417/8/10/1825|This paper]] found that charging to only 50% SoC resulted in extension of
 >   lifetime expectancy of the vehicle battery by 44–130%. When accounting for the calendar ageing as well, this proved to be a large part of the total ageing.
@@ Line 234: / Line 234: @@
 They do recommend [[electrical:12v:alternator#lithium-specific|a BIM]] or [[electrical:12v:b2b|DC-DC charger]] //for banks >300Ah//.
-Reminder:  don't [[rv:idling|idle]] to charge batteries.  //Any// type of batteries.
 === why an isolator? ===
@@ Line 261: / Line 260: @@
 **Caveats**:
-  * Only alternator charge while driving (no idling except for brief preliminary test).
+  * Only alternator charge while driving ([[rv:idling|no idling]] except for brief preliminary test).
   * Pay attention while charging from alternator to keep from overcharging the Li or holding for long periods at high [[electrical:depth_of_discharge|states of charge]].
   * You may want a manual disconnect or [[electrical:12v:alternator_charging_hvd|HVD]] to shut off alternator charging.  These can be added on the D+ wire (ignition triggered) or electronics ground wire (VSR, solenoid, or voltage-triggered DC-DC)

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