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--- opinion:frater_secessus:charging_faster [2020/04/27 21:05]
frater_secessus [lead-acid]
+++ opinion:frater_secessus:charging_faster [2020/05/13 12:10]
frater_secessus [charging faster isn't always better]
@@ Line 2: / Line 2: @@
-There is a common misperception that charging one's battery banks //faster// is //better// or worth throwing more money at.  Here are some reasons it is not always true:
+There is a common misperception that charging one's battery banks //faster// is //better// or that having more charging capacity guarantees faster charging.  Here are some reasons it is not always true:
 ===== lead-acid =====
@@ Line 18: / Line 19: @@
 MaineSail found that
-  * charging AGM at C/2.5 (max rate) resulted in the battery being 63.3% "full" at Vabs and being fully charged in **5hrs, 30 minutes** (20min Bulk, 5hr 10mins Absorption)
+  * charging AGM at C/2.5 (max rate) resulted in the battery being 63.3% "full"((amp-wise)) at Vabs and being fully charged in **5hrs, 30 minutes** (20min Bulk, 5hr 10mins Absorption)
   * charging AGM at C/5 (min rate) resulted in the battery being 77.4% "full" at Vabs and being fully charged in **5hrs, 42 minutes** (76min Bulk, 4hr 26mins Absorption)
 Note that the **using 2x the charging current only sped up the whole process by 12 minutes (3.6%)** due to Vabs starting earlier but taking longer. Getting to Vabs faster could be [[electrical:solar:pwm_tweaking|preferable on PWM controllers]].
+Also note that for simple, timer-based Absorption configurations((like 180 minutes)) the slower charging regiment would actually complete more Absorption.((180/266mins rather than 180/310mins))
 ===== lithium =====

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