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--- electrical:12v:deep_cycle_battery [2020/05/13 13:05]
frater_secessus [manufacturers]
+++ electrical:12v:deep_cycle_battery [2020/06/10 13:45]
frater_secessus [carbon FLA]
@@ Line 85: / Line 85: @@
 ==== carbon FLA ====
-Some manufacturers attempt to get around the [[electrical:12v:psoc|Partial State of Charge]] limitations of lead chemistries by using carbon in some form.  The idea is that the addition of carbon limits hard sulfation that can form in PSOC scenarios.
+Some manufacturers attempt to get around the [[electrical:12v:psoc|Partial State of Charge]] limitations of lead chemistries by using carbon in some form.  The idea is that the addition of carbon increases the internal conductivity of the negative plate under challenging conditions, minimizing hard sulfation that can form in PSOC scenarios.
-In the milder form, carbon is added to the negative plates.  Trojan claims up to 15% more cycles from the RE(("Renewable Energy")) line than non-carbon FLA in PSOC use.((http://www.trojanbattery.com/new-products/smart-carbon/))  At this writing the cost premium for this <=15% increase in cycles is 21%.(($175 for T-105RE vs $145 for T-105))
+In the milder form, carbon is added to the negative plates:
+> Battery manufacturers have begun including high purity conductive graphite in the negative active material of their batteries. They have found that this type of carbon helps to maintain the essential active material conductivity that helps to control sulfation.((https://batteryvitamin.net/sulfation_remedies_demystified))
+Trojan claims up to 15% more cycles from the RE(("Renewable Energy")) line than non-carbon FLA in solar-charging use.((http://www.trojanbattery.com/new-products/smart-carbon/))  At this writing the cost premium for this <=15% increase in cycles is 21%.(($175 for T-105RE vs $145 for T-105))  This would be an extra 9 months of life assuming a 5yr lifespan.
 ===== manufacturers =====

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