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electrical:12v:directcharginglfp

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electrical:12v:directcharginglfp [2024/03/20 12:07]
frater_secessus [assessing your own setup for direct alternator charging]
electrical:12v:directcharginglfp [2024/04/04 11:51] (current)
frater_secessus [reasons NOT to attempt direct charging] temp
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   * you have a **small or already-overloaded alternator**   * you have a **small or already-overloaded alternator**
   * you **already own a DC-DC**    * you **already own a DC-DC** 
 +  * your BMS has no low temp charging disconnect and you have no desire to work around that((to be fair, this also rules out DC-DC that lack low-temp disconnect))
   * you **want predictable charging rates**, like 40A over the next hour.  DC-DC will provide this((barring interference from big chassis loads, BMS protections, high ambients, etc));  isolator charging starts out high and drops as battery voltage rises.  You might learn its behavior over time, but it will never be as easy as "40A for 1.5 hours = 60Ah"   * you **want predictable charging rates**, like 40A over the next hour.  DC-DC will provide this((barring interference from big chassis loads, BMS protections, high ambients, etc));  isolator charging starts out high and drops as battery voltage rises.  You might learn its behavior over time, but it will never be as easy as "40A for 1.5 hours = 60Ah"
   * you want **stable charging rates** regardless of state of charge((acceptance will taper in Absorption if present))     * you want **stable charging rates** regardless of state of charge((acceptance will taper in Absorption if present))  
electrical/12v/directcharginglfp.txt ยท Last modified: 2024/04/04 11:51 by frater_secessus