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electrical:converter [2023/10/16 12:19]
frater_secessus [charging the house battery]
electrical:converter [2023/10/16 12:21]
frater_secessus [choosing a converter]
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 If money is no object you can buy a multistage ("smart") converter rated at the bank's maximum acceptance level at 50% DoD:   If money is no object you can buy a multistage ("smart") converter rated at the bank's maximum acceptance level at 50% DoD:  
  
-* [[electrical:12v:battery_capacity|0.33C]] for AGM +  * [[electrical:12v:battery_capacity|0.33C]] for AGM 
-* 0.2C for FLA +  * 0.2C for FLA 
-* 0.4C is not LiFeP)4's max, but is probably a good rate for good cycle life+  * 0.4C is not LiFeP)4's max, but is probably a good rate for good cycle life
  
  
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 === limits of 15A shore power === === limits of 15A shore power ===
  
-I would limit myself to 13A off a 15A shore power plug, or 1,560w. Assuming 10% conversion losses this would give us a **theoretical max of around 100A of converter charging** (14.4Vabs x 100A).  <-- shore power amps are at 120vac, converter ratings are at their nominal DC voltage (12vdc in this case).+13A off a 15A shore power plug, or 1,560w is a safe limit for continuous power use. Assuming 10% conversion losses this would give us a **theoretical max of around 100A of converter charging** (14.4Vabs x 100A).((shore power amps are at 120vac, converter ratings are at their nominal DC voltage))
  
  
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-Lead chemistries require a minimum charge rate to stay healthy, and AGM more than the other lead variants.  In the absence of documentation from your battery mfg I would assume this is [0.2C](https://rvwiki.mousetrap.net/doku.php?id=electrical:12v:battery_capacity):+Lead chemistries require a minimum charge rate to stay healthy.  In the absence of documentation from your battery mfg I would assume 
  
-78A for a 390Ah bank (0.2 x 390Ah).  So an **80A converter**.  +  * 0.2C for AGM 
-39A for a 195Ah half bank, so a 40A converter+  0.1C for Flooded Lead Acid 
 +  [LiFePO4 has no minimum current spec]
  
  
electrical/converter.txt · Last modified: 2024/06/25 12:07 by frater_secessus