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electrical:12v:maintaining_starter_battery

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electrical:12v:maintaining_starter_battery [2025/04/12 12:34]
frater_secessus [maintaining starter batteries] wrong name
electrical:12v:maintaining_starter_battery [2025/04/12 12:49] (current)
frater_secessus [starter battery chargers alongside DC-DC chargers]
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 ==== starter battery chargers alongside DC-DC chargers ==== ==== starter battery chargers alongside DC-DC chargers ====
  
-If a DC-DC is present and relatively weak shore power charging is applied to the starter battery there are circumstances where the DC-DC can cycle on-off constantly.  Let's consider a 20A DC-DC and a 10A starter battery maintainer.+If a DC-DC is present and an additional & relatively weak source of charging is applied to the starter battery the DC-DC can cycle on-off continually.  Let's consider a 20A DC-DC and a 10A starter battery maintainer.
  
   - starter battery at 12.7v before charging applied   - starter battery at 12.7v before charging applied
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 To avoid this scenario either: To avoid this scenario either:
  
-  * ensure the DC-DC rating is smaller than the starter battery rating; or +  * ensure the DC-DC rating is smaller than the starter battery charger'rating; or 
-  * apply the shore power charging to the house bank side instead((for DC-DC models with starter battery maintenance, see above))+  * apply any additional charging to the house bank side instead((for DC-DC models with starter battery maintenance, see above))
  
  
  
electrical/12v/maintaining_starter_battery.1744475665.txt.gz · Last modified: 2025/04/12 12:34 by frater_secessus