AGM battery setpoints?
Now that I have this nice fully adjustable Rogue MPPT 3048 I suddenly realized that I don't know battery setpoints - Absorb V, Float V and Full I (charging current at SOC 100). Alright, current in...
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Ok, from the Lifeline manual - I like collecting useless things ;):
So there are limits even for Lifeline. Pretty high lower "limit", in particular. To achieve their famous longevity, you need minimum 20A per 100 AH battery - very few solar users will have that much. Note that upper limit 5C (I was wrong, it's 5C not 4C) is called "in-rush current level". They don't comment further on 5C, but sounds to me like meant for occasional faster than normal charging.
For repetitive deep cycling, chargers should have an output current of at least 0.2C (20 Amps for a 100 Ah battery). If the output current is less than this value, the cycle life of the battery may be negatively affected.
Due to the low impedance design, Lifeline® batteries can tolerate in-rush current levels as high as 5C (500A for a 100Ah battery).
So there are limits even for Lifeline. Pretty high lower "limit", in particular. To achieve their famous longevity, you need minimum 20A per 100 AH battery - very few solar users will have that much. Note that upper limit 5C (I was wrong, it's 5C not 4C) is called "in-rush current level". They don't comment further on 5C, but sounds to me like meant for occasional faster than normal charging.
