I just got off the phone with Outback technical support in which my understanding of how the charger works was challanged.
In my situation, the AGS Volt Start conditions start my generator and a charge cycle is initiated. I always though that during the bulk phase, the chargers try to operated at a constant maximum current, limited by the charge ACC input limit in order to raise the voltage to the absorb set point. At that point the charger changed to a constant voltage mode and tapered off the current. The tech said that the charger will actually taper off the current before then, as the actual battery voltage approaches the absorption set point voltage, as part of a single current curve, based on voltage, running from the start of the bulk cycle to the end of the absorption cycle. So long as the charger rating is large compared to the battery size, I expect to see the charge current a constant maximum all the way up to the absorption set point. So if I don't see this, I am looking for a problem somewhere. Not so according to technical support. Any thoughts? Mark Frye Berkeley Solar Electric Systems 303 Redbud Way Nevada City, CA 95959 (530) 401-8024 www.berkeleysolar.com
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