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--- electrical:12v:lifepo4_batteries_thread [2017/12/09 18:02]
frater_secessus [LiFePO4 charging for RVs: running barefoot]
+++ electrical:12v:lifepo4_batteries_thread [2023/10/20 13:45]
princess_fluffypants [Synopsis of C&S LiFePO4 batteries thread]
@@ Line 7: / Line 7: @@
 ====== Synopsis of C&S LiFePO4 batteries thread ======
-The Cruisers and Sailing forum has a 300+ page [[http://www.cruisersforum.com/forums/f14/lifepo4-batteries-discussion-thread-for-those-using-them-as-house-banks-65069.html|LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks]] thread.
+This page is primarily for people interested in making their own lithium battery banks. This means buying raw cells (usually at a deep discount directly from a factory in China), and then putting together your own bank want with your own bus bars, chargers, Battery Monitoring System (BMS), and potentially things like bluetooth controllers and heaters.
+The advantage is potentially //massive// capacities for lower costs when compared to battery bank of [[electrical:12v:drop-in_lifepo4|drop-in lithium]] batteries. Going DIY also gives additional options in terms of different voltages and shapes of packs, which can be helpful for fitting them into weird places on RVs and vans.
+This is a fairly technical endeavor with a not insignificant risk of fire/explosion if you screw it up, so doing a lot of research beforehand is highly recommended.  And good place to start is the Cruisers and Sailing forum, which has a 300+ page [[http://www.cruisersforum.com/forums/f14/lifepo4-batteries-discussion-thread-for-those-using-them-as-house-banks-65069.html|LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks]] thread.
 There is gold in the thread but it can be hard to find.  This page attempts to distill the thread down to best practices for RV/campervan use of LiFePO4 batteries.  Links are provided so readers can go back to the thread for context-checking and critical examination.
+Another excellent resource is the [[https://diysolarforum.com/|DIY Solar Power forum]].
 ===== Suitability for RV use =====
 LiFePO4
-  * can take full current during charging;  there are no //stages// in the lead-acid sense
+  * can take full current during charging;  there are no //stages// in the lead-acid sense(([[https://img.mousetrap.net/misc/lithiumAbsorpTimes.jpg|higher charge rates can make a quasi-absorption useful]] to replace all the amps))
   * can use more nominal capacity than lead-acid (80-90% v. 50% [[electrical:depth_of_discharge|depth of discharge]])
-  * are not damaged by low SoC
+  * are not damaged by [[electrical:12v:psoc|partial stage of charge]]
   * can be mounted vertically or on a thin edge (but not flat)((http://www.cruisersforum.com/forums/f14/lifepo4-batteries-discussion-thread-for-those-using-them-as-house-banks-65069-234.html#post1452743))
   * smaller and lighter than like-capacity LA

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