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electrical:12v:alternator [2024/09/25 16:02]
frater_secessus [triggering] 		electrical:12v:alternator [2025/06/23 15:42] (current)
frater_secessus orton
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 An interesting teardown of the Li-BIM can be seen in [[https://www.youtube.com/watch?v=pFd9Uulo9rY|this video]]. An interesting teardown of the Li-BIM can be seen in [[https://www.youtube.com/watch?v=pFd9Uulo9rY|this video]].
  
 +=== True Amalgamated Lithium VSR ===
  
 +True [[https://www.trueam.com/product/true-lithium-large-dual-battery-kit/|makes a VSR]] with 13.5v ON and 13.2v OFF setpoints. 
  
  
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   * relays and DC-DC that are triggered solely by D+ can be disabled by a switch on the D+ wire.  [[https://www.reddit.com/r/VanLife/comments/1c4vjl0/is_this_renogy_a_good_dcdc_option_for_a_200ah/kzuc78v/|Additional control could be introduced]] with a relay and or delay ([[https://amzn.to/3TUEbmu|example]])   * relays and DC-DC that are triggered solely by D+ can be disabled by a switch on the D+ wire.  [[https://www.reddit.com/r/VanLife/comments/1c4vjl0/is_this_renogy_a_good_dcdc_option_for_a_200ah/kzuc78v/|Additional control could be introduced]] with a relay and or delay ([[https://amzn.to/3TUEbmu|example]])
   * VSR triggered by voltage can can be disabled by a switch on the thin ground wire on the VSR itself.((the VSR requires a ground to make a complete circuit to run internal electronics.  Breaking this circuit turns off the  VSR))     * VSR triggered by voltage can can be disabled by a switch on the thin ground wire on the VSR itself.((the VSR requires a ground to make a complete circuit to run internal electronics.  Breaking this circuit turns off the  VSR))  
-  * some DC-DC can be //derated//((output intentionally reduced)) by providing a 12v signal to the CURRENT LIMIT terminal ([[electrical:12v:b2b#renogy1|Renogy DC1212 series]], [[electrical:12v:b2b#leaptrend|Leaptrend]]) or through a setting in an app (Renogy DCC50S). +  * some DC-DC can be //derated//((output intentionally reduced)) by providing a 12v signal to the CURRENT LIMIT terminal ([[electrical:12v:b2b#renogy1|Renogy DC1212 series]], [[electrical:12v:b2b#leaptrend|Leaptrend]]) or through a setting in an app (Renogy DCC50S), etc 
-  * some DC-DC can be //disabled// by providing a 12v signal to a remote ON/OFF terminal ([[electrical:12v:b2b#victron|Victron Orion-TR]]), Kisae.  +  * some DC-DC can be //disabled// by providing a 12v signal to a remote ON/OFF terminal ([[electrical:12v:b2b#victron|Victron Orion-TR]]), [[electrical:12v:b2b#disabling_the_kisae|Kisae]].  
   * on units that have a dedicated NEG ("ground", negative return) to the starter battery there may be no easy disable method.  The brute force method would be to insert a relay between the starter battery POS and the unit's POS input, and control the relay with a switch.    * on units that have a dedicated NEG ("ground", negative return) to the starter battery there may be no easy disable method.  The brute force method would be to insert a relay between the starter battery POS and the unit's POS input, and control the relay with a switch. 
   * bluetooth-enabled DC-DC can often be disabled or derated from the app   * bluetooth-enabled DC-DC can often be disabled or derated from the app
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 A simple possible approach would be to [[electrical:solar:shallow_cycling|replace the starter battery with a marine or AGM battery]].((http://www.cheaprvliving.com/forums/Thread-Easiest-simplest-cheapest-power-set-up)) A simple possible approach would be to [[electrical:solar:shallow_cycling|replace the starter battery with a marine or AGM battery]].((http://www.cheaprvliving.com/forums/Thread-Easiest-simplest-cheapest-power-set-up))
  
-===== charging trailer batteries =====+===== charging remote batteries ===== 
 + 
 +==== truck beds ==== 
 + 
 +If the bed does not have sufficient ground connectivity to run the NEG return through the body, then you can either: 
 + 
 +  * add an additional and/or beefier ground strap between bed and frame; or 
 +  * run a dedicated NEG return from the bank back to the starter batt, frame, etc.  
 + 
 + 
 + 
 + 
 +==== trailers ==== 
  
 Some amount of power can be passed along the 7pin harness, usually enough to //maintain// the trailer battery's voltage and run small loads.  For the purposes of this discussion [[https://www.etrailer.com/faq-wiring-7-way.aspx|the important wires]] in the 7-pin are: Some amount of power can be passed along the 7pin harness, usually enough to //maintain// the trailer battery's voltage and run small loads.  For the purposes of this discussion [[https://www.etrailer.com/faq-wiring-7-way.aspx|the important wires]] in the 7-pin are:
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 It's also possible to run a separate and (much) heavier & more expensive cable/connector from the TV to the trailer;  this would minimize voltage sag.   It's also possible to run a separate and (much) heavier & more expensive cable/connector from the TV to the trailer;  this would minimize voltage sag.  
 +
 +
 +
  
  
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 ===== isolator without a house battery ===== ===== isolator without a house battery =====
  
-**Q.**  An isolator is typically used to charge a house battery, so why install [[electrical:12v:alternator#combiners|a relay]] if you have no house battery?  +**Q.**  An "isolator" (combiner, relay, etc)  is typically used to charge a house battery, so why install [[electrical:12v:alternator#combiners|a relay]] if you have no house battery?  
  
-**A.**  because an isolator can bring Big Current into the cabin for other uses, and do so //only when the engine is running//.  Ciggy ports are typically limited to 10A (120-150w).+**A.**  because it can bring Big Current into the cabin for other uses, and do so //only when the engine is running//.  Ciggy ports are typically limited to 10A (120-150w).
  
 **Examples:**((while driving, not while idling)) **Examples:**((while driving, not while idling))
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 +===== the Orton method =====
  
 +Similar to the above, [[https://www.ortontransit.info/electrical|the Orton method]] uses a combiner to control power to an inverter.  The inverter in turn runs AC-DC battery chargers and other shore power loads. 
  
 ===== tweaking the current ===== ===== tweaking the current =====
electrical/12v/alternator.1727280151.txt.gz · Last modified: 2024/09/25 16:02 by frater_secessus

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