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electrical:12v:directcharginglfp

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electrical:12v:directcharginglfp [2024/06/04 14:34]
frater_secessus [testing phase] 		electrical:12v:directcharginglfp [2024/06/20 18:12]
frater_secessus [addendum: other charging reports]
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 If the SoC was very low (near cutoff) the combiner would slightly faster, ~7.5 minutes.  If the SoC was very low (near cutoff) the combiner would slightly faster, ~7.5 minutes. 
-===== reasons NOT to attempt direct charging =====+===== reasons NOT to direct charge LFP =====
  
  
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 ==== testing phase ==== ==== testing phase ====
  
-  - make the first test run a brief one and with the Li well-charged.((higher states of charge will reduce current demand))  Start the engine and see if the charging current((per the BMS, [[electrical:12v:battery_monitor|battery monitor]], or [[https://amzn.to/3Vt8Jhh|clamp meter]])) and voltage is acceptable.  See if chassis voltage and engine RPM remains stable((does not drop precipitously)) and belts do not squeal.  Turn off the engine. +  - make the first test run a brief one and with the Li well-charged.((higher states of charge will reduce current demand))  Start the engine and see if the charging current((per the BMS, [[electrical:12v:battery_monitor|battery monitor]], or [[https://amzn.to/3Vt8Jhh|clamp meter]])) and voltage is acceptable.  Check to see chassis voltage and engine RPM remain stable((do not drop precipitously anything longer than a moment while alternator output adjusts)) and belts do not squeal.  Turn off the engine. 
-  - if solar or other charging source is present, disconnect other chargers and repeat #1.((other chargers will push up apparent bank voltage, which would decrease current demanded of the alternator)) +  - if solar or other charging source is present, disconnect those chargers and repeat #1.((other chargers will push up apparent bank voltage, which would decrease current demanded of the alternator)) 
-  - repeat steps with the Li bank at lower and lower states of charge, down to the lowest state of charge you expect to recharge from alternator. +  - repeat steps above with the Li bank at lower and lower states of charge, down to the lowest state of charge you expect to recharge from alternator. 
-  - celebrate+
  
 ==== caveats ==== ==== caveats ====
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 ===== addendum:  other charging reports ===== ===== addendum:  other charging reports =====
  
-This info has been moved to the Other Reports tab on [[https://docs.google.com/spreadsheets/d/145Mx0DQkUbznaiGdTcYmKEc3AqOL3Eu79hqQuzh83oM/edit?usp=sharing|the main spreadsheet]]+This info has been moved to the Other Reports tab on [[https://docs.google.com/spreadsheets/d/145Mx0DQkUbznaiGdTcYmKEc3AqOL3Eu79hqQuzh83oM/edit?usp=sharing|the main spreadsheet]]  It includes setups that lack incomplete info, or interesting related setups. 
electrical/12v/directcharginglfp.txt · Last modified: 2024/06/20 18:12 by frater_secessus

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