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--- electrical:12v:mandatory_dcdc [2024/07/15 17:13]
frater_secessus [Situations where DC-DC is effectively required]
+++ electrical:12v:mandatory_dcdc [2024/07/15 17:15] (current)
frater_secessus [Is DC-DC charging mandatory?]
@@ Line 7: / Line 7: @@
 In many/most situations, direct-charging the house bank with [[electrical:12v:alternator#combiners|a combiner]] (relay, isolator, VSR)  is both effective and inexpensive. Even [[electrical:12v:directcharginglfp|with lithium banks]].
-However, some advanced situations may require a **DC-to-DC charger**. These are much more intelligent (and expensive) devices that sit in between the vehicle batteries and the house batteries, and actively adjust both the voltage and current flowing from the vehicle's electrical system and into the house batteries.
+However, **some use cases may require a DC-to-DC charger**. These are much more intelligent (and expensive) devices that sit in between the vehicle batteries and the house batteries, and actively adjust both the voltage and current flowing from the vehicle's electrical system and into the house batteries.
 **Note:** This article is just the TL;DR of DC-DC charger options. [[electrical:12v:b2b|More detailed info is here]].
@@ Line 14: / Line 14: @@
   * When the vehicle has a smart (variable-voltage) alternator
     * Common on European vehicles, and on American vehicles newer than ~2017
-  * Small alternators vs. ginormous battery banks of any chemistry
+  * Small alternators vs. ginormous battery banks of //any// chemistry
   * Exotic alternator or battery bank voltages, including setups like 24v house bank and 12v alternator (or //vice versa//)
   * If one needs relatively-stable charge rates((direct-charging rates "taper" as bank voltage rises))
@@ Line 25: / Line 25: @@
 ===== Situations where DC-DC is preferable =====
-  * when the alternator is the sole charging source for LiFePO4((DC-DC will deliver more consistent and //usually// faster charging in this case))
+  * when the alternator is the sole charging source for LiFePO4.  In this situation DC-DC will deliver more predictable and often faster charging, particularly when the bank is at higher SoC.

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