RV Voltages too high while charging
I have a problem and have been wrapping my head around this for a few days. I have four 100w Solar panels, and a Morningstar RJ-45 programmable charge controller wired to batteries. I have Four In...
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"The problem with that for fast charging is that the charger causes an initial "spike" in battery voltage, but there has been no time for the battery SOC to rise. The voltage regulator sees this spike and cuts the current right back."
I'm wondering if the problem has to do with the fact that many alternators can put out more current than a small car battery can handle? If the alt's current was limited, would it not eliminate that voltage spike?
IOW, wouldn't charging a much larger (and depleted) battery with that same high output alt result in a cc/cv profile?
I read this morning, the proper way to utilize current limiting is to have a higher limit than the actual load. (thus not needing to utilize its built in protection). In this case, it would be like using a 100a smart charger on a bank that's only capable of accepting less than 100a. The result? Instant cv mode/tapering amps.
And which is faster... tapering from 100a from the get go, or a lower (say 60a) constant current 'til near 80%soc?
I'm wondering if the problem has to do with the fact that many alternators can put out more current than a small car battery can handle? If the alt's current was limited, would it not eliminate that voltage spike?
IOW, wouldn't charging a much larger (and depleted) battery with that same high output alt result in a cc/cv profile?
I read this morning, the proper way to utilize current limiting is to have a higher limit than the actual load. (thus not needing to utilize its built in protection). In this case, it would be like using a 100a smart charger on a bank that's only capable of accepting less than 100a. The result? Instant cv mode/tapering amps.
And which is faster... tapering from 100a from the get go, or a lower (say 60a) constant current 'til near 80%soc?
