Hi, first time poster. Hopefully I'm following the rules here.
I have a question about the maximum pull of 0% SoC flooded lead acid battery when charging, assuming the power source is capable of 700+ amps
How can you know (and thus successfully guage/breaker/fuse your system) the maximum current a dead flooded lead acid battery will pull when charging.
Example -> In my design. I have a vehicle alternator (capable of 130 amps by manufacturer specs), a starter battery (capable of well over 700+ amp, for the starter obviously) that goes to an isolator -> so it doesn't drain the starter battery -> that goes to a battery bank with 4 deep cycle flooded lead acid batteries with about 400 amp hour rating total wired in parallel
My concern is that when this battery bank is at 0% SOC, it will try to pull/draw WAY too many amps from the starter battery, even for a short period of time and blow fuses/toggle switches and break breakers like crazy. Less concerned with the alternator since it's simply not capable of outputting as much amperage as the starter battery. I'm being told by many reliable sources it won't, but I'm trying to figure out why and how that works. For the life of me I can't find any literature on the subject or even someone to give me a straight answer. I've been googling and cold calling electricians, mechanics, RV stores for days. And been told many times not to worry and how to fuse/gauge/breaker/ my system safely.
But I would really like to understand this better. Please correct me if I'm using any terms incorrectly or I have misunderstood something, I'm a newbie and I can take criticism and corrections. And also thank you for reading
I have a question about the maximum pull of 0% SoC flooded lead acid battery when charging, assuming the power source is capable of 700+ amps
How can you know (and thus successfully guage/breaker/fuse your system) the maximum current a dead flooded lead acid battery will pull when charging.
Example -> In my design. I have a vehicle alternator (capable of 130 amps by manufacturer specs), a starter battery (capable of well over 700+ amp, for the starter obviously) that goes to an isolator -> so it doesn't drain the starter battery -> that goes to a battery bank with 4 deep cycle flooded lead acid batteries with about 400 amp hour rating total wired in parallel
My concern is that when this battery bank is at 0% SOC, it will try to pull/draw WAY too many amps from the starter battery, even for a short period of time and blow fuses/toggle switches and break breakers like crazy. Less concerned with the alternator since it's simply not capable of outputting as much amperage as the starter battery. I'm being told by many reliable sources it won't, but I'm trying to figure out why and how that works. For the life of me I can't find any literature on the subject or even someone to give me a straight answer. I've been googling and cold calling electricians, mechanics, RV stores for days. And been told many times not to worry and how to fuse/gauge/breaker/ my system safely.
But I would really like to understand this better. Please correct me if I'm using any terms incorrectly or I have misunderstood something, I'm a newbie and I can take criticism and corrections. And also thank you for reading
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