> a larger battery jar...all that extra water Say one uses SG 1.220 vs 1.265. That's an unnoticeably 4% larger battery jar to get the same amount of sulfur.
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Actually, we connect the charge controller to the battery bank first, then connect the solar panels (and disconnect solar panels first, then battery bank).
Solar Charge controllers typically, "boot" from the battery connections and will even pick a default bank voltage (12, 24, 48 VDC)...
In a few cases, running solar panels on the input the a charge controller without a battery has been known to damage a few controllers.
Remember the modules are connected to the charger first then to the battery. The inverter supply the power for the loads.0 ·June 15