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--- opinion:frater_secessus:charging_faster [2020/04/18 13:28]
frater_secessus [charging faster isn't always better]
+++ opinion:frater_secessus:charging_faster [2020/04/18 13:30]
frater_secessus [charging faster isn't always better]
@@ Line 4: / Line 4: @@
 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:
-**Lead batteries** have a **maximum amount of current** they will accept, typically [[electrical:12v:battery_capacity|C/3]] for AGM and C/5 for flooded. So if you have 100Ah of AGM the most it will want to take is something like ~33A.  Installing 50A-100A of charging capacity can't force-feed the battery any faster.((it may help run loads, though))
+**Lead batteries** have a **maximum amount of current** they will accept, typically [[electrical:12v:battery_capacity|C/3]] for AGM and C/5 for flooded. So if you have 100Ah of AGM the most it will want to take is something like ~33A.  Once the battery's limit is hit throwing more charging capacity at it can't charge it any faster.((it may help run loads, though))
 ** Deep-cycled lead batteries have a lengthy [[electrical:12v:charging|Absorption]] stage** that cannot be sped up. Depending on use, Absorption typically requires several hours.There is a saying that "it takes 9 months to make a baby, but two women cannot make a baby in 4.5 months".  Same with absorption - it takes what it takes and you cannot hurry it.

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