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--- opinion:more_power [2025/05/05 09:51]
frater_secessus
+++ opinion:more_power [2025/05/05 12:07] (current)
frater_secessus
@@ Line 1: / Line 1: @@
 DRAFT
->> “It is cheaper and easier to use less power than it is to make more power.” – highdesertranger
+> “It is cheaper and easier to use less power than it is to make more power.” – highdesertranger
+> ...the //why// is important. If you are trying to **meet a specific performance goal** you can save money by identifying performance bottlenecks and upgrading the relevant components. If you want to do the upgrades because they sound like **a fun project** then throw all the parts at it you want with my sincere blessing. I certainly am not immune to fun projects. -- secessus((https://www.reddit.com/r/RVSolarPower/comments/1keb0or/dc_to_dc_questions/mqq64ma/))
 ====== upgrading an existing power setup ======
 So your existing [[electrical:12v:intro|power setup]] isn't meeting needs and you want to change it.  Maybe your [[electrical:12v:dailypowerrequirements|daily power requirements]] have increased, you bought [[opinion:frater_secessus:prebuilt_van|a pre-built]] van, or your use case has changed.
@@ Line 12: / Line 24: @@
-  * the first step to fixing a problem is to **understand the problem**
+  * the first step to fixing a problem is to **understand** and **clearly state** the problem.
   * human nature leads us to want simple solutions to complex problems
   * marketers and influencers have vested interests in convincing us that simple solutions exist:  "What you need is a [insert product here]"
@@ Line 19: / Line 31: @@
 [[opinion:frater_secessus:pareto|about these summaries]]
+===== big picture:  how close are we to the goal line? =====
+* if your existing system usually meets needs but sometimes falls short in anomalous circumstances
+* if your existing system is **close to meeting needs** (like within 10% of hitting [your daily power requirements](https://rvwiki.mousetrap.net/doku.php?id=electrical:12v:dailypowerrequirements)) then for several reasons a LiFePO4 swap has a good chance of closing that gap with no other changes needed.
+* if your existing system is **far from meeting needs** then other upgrades would be required.  Solar, as you say, and/or replacing any existing relay/isolator with an actual DC-DC.
@@ Line 27: / Line 47: @@
 >> defining the real problem is is 90% of the solution
-... and that applies here.  I understand why we humans don't want to spend time/effort figuring out the probem.  It's not fun and we don't get to buy stuff yet.
+... and that applies here.  I understand why we humans don't want to spend time/effort figuring out the problem.  It's not fun and we don't get to buy stuff yet.
 There are two main areas where the problem can reside, or it can be in both.

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