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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One can sit around and argue ideal voltages all day long, but the best value for each battery will be different and change as the battery ages, and depend on the depth of its discharges.
My screwy31 required rather excessive voltages to get the SG into the green via low and slow solar, 14.9absorption and 15.3 finish, and 16 volts for 45 minutes to 2 hours every 2 weeks to max out SG.
Yet when pumped upto and held a 14.7 for 2 hours via my 40 amp meanwell would do the same thing as the low and slow solar.
The hydrometer will tell you what your flooded batteries want and how they respond to your charging sources. Or you can go stick your head in the sand and drink the Kool aid and believe the marketing department of your charging source and thump your chest with the 'works just fine' mantra while trying to get others to agree with you.
My screwy31 required rather excessive voltages to get the SG into the green via low and slow solar, 14.9absorption and 15.3 finish, and 16 volts for 45 minutes to 2 hours every 2 weeks to max out SG.
Yet when pumped upto and held a 14.7 for 2 hours via my 40 amp meanwell would do the same thing as the low and slow solar.
The hydrometer will tell you what your flooded batteries want and how they respond to your charging sources. Or you can go stick your head in the sand and drink the Kool aid and believe the marketing department of your charging source and thump your chest with the 'works just fine' mantra while trying to get others to agree with you.
