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electrical:12v:deep_cycle_battery [2021/07/16 11:19]
frater_secessus [AGM] added practical sailor article 		electrical:12v:deep_cycle_battery [2021/09/28 16:45]
frater_secessus [LiFePO4]
Line 232: Line 232:
  
 ==== LiFePO4 ==== ==== LiFePO4 ====
 +
  
 [[https://amzn.to/2oVGNWj|{{ https://m.media-amazon.com/images/I/61Z6qdh47cL._AC_UL320_SEARCH213888_ML3_.jpg}}]] [[https://amzn.to/2oVGNWj|{{ https://m.media-amazon.com/images/I/61Z6qdh47cL._AC_UL320_SEARCH213888_ML3_.jpg}}]]
-In theory **LifePO4 (LFP) lithium batteries** should be near perfect for boondockers who [[camping:snowbirding|follow good weather]]. 
- 
-[[https://amzn.to/2oVGNWj|Battle Born]] presently dominates the drop-in 12v lithium market. 
- 
- 
- 
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-**Pro:** 
-  * can accept significant current throughout charging, unlike lead-acid which accepts relatively current during [[electrical:12v:charging#absorption_stage|absorption]]. 
-  * can be cycled down to 80% [[electrical:depth_of_discharge|depth of discharge]] compared to lead-acid's 50%. 
-  * higher number of rated cycles than lead-acid, perhaps 2000.((http://www.pbase.com/mainecruising/lifepo4_on_boats)) 
-  * half the weight, smaller size 
-  * no mounting restrictions 
-  * no venting required 
-  * not rated over 20 hours like lead-acid;  LiFePO4 Ah are rated at .5C.((http://www.pbase.com/mainecruising/lifepo4_on_boats)) 
-  * 4S LiFePO4 cells are a good fit for nominal 12v systems.  They are fully charged at ~13.8v and 80% discharged around 12.6v.   
- 
-**Con:** 
-  * much more expensive 
-  * cannot be charged below freezing (use is ok) 
-  * can be damaged by heat 
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-BMS-equipped LFP banks should be charged according to manufacturer's specs.  Bare cell charging is discussed [[electrical:12v:lifepo4_batteries_thread|on its own page]]. 
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-Further reading: +LiFePO4 drop-ins have moved to [[electrical:12v:drop-in_lifepo4|their own page]].
-  * [[electrical:12v:LiFePO4 Batteries thread|Synopsis]] of Cruisers and Sailing forums' LiFePO4 thread. +
-  * CF [[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]] +
-  * CF [[http://www.cruisersforum.com/forums/f14/lifepo4-batteries-okay-tear-me-apart-36530.html|LiFePO4 batteries]]   +
-  * CF [[http://www.cruisersforum.com/forums/f14/lifepo4-house-bank-using-smarthousepower-bms-40389.html|LiFePO4 house batteries]]+
  
 +LiFePO4 DIY info can be found on on Will Prowse's pages about [[https://www.mobile-solarpower.com/raw-lifepo4-deals-page.html|cells]] and [[https://www.mobile-solarpower.com/raw-lifepo4-deals-page-676969.html|BMS]], and in [[electrical:12v:lifepo4_batteries_thread|this distillation of a 10-year thread]] on the Crusisers & Sailing forum. 
  
  
electrical/12v/deep_cycle_battery.txt · Last modified: 2024/04/15 01:00 by frater_secessus

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