Happy Friday, Mechanix~ Drake Chamberlin wrote about the Radian inverter that began running a "too short" absorption interval after several years of normal operations. Drake said the possible culprit is inverter firmware per Outback; I wish to add a data point & follow up questions:
I sold an Outback SE-830BLU-300AFCI Systemedge Package--which includes Outback batteries & all for quick deployment--to a longtime retail client in the Autumn of 2020. Firmware seems likely to be the latest version on all components since it shipped from OB so recently. The client's internet service to the site was lost along with everything else in a CA wildfire--so I can't look in remotely & I can't physically travel to the site. He has much prior experience with inverter/chargers, off grid living etc. but he's new to the Radian, Mate3s, etc. My off grid client reports his new Radian is shifting to float before the Absorption target voltage is even reached & the shift occurs around 56.1 volts battery voltage on the way up. The battery is cool, not warm. He's been through the menus & couldn't find a likely suspect for this behavior. The FM100 PV controller on the same system is able to push the battery to the absorption target then hang there as would be expected before it shifts to float. That's if the daylight lasts long enough, of course. As with Drake's client, my friend needs to be able to pump the battery to a higher state of charge with his generator than what he's getting. His upscale (but lead acid) Outback BLU batteries we bought in the package seem at risk of harm due to this problem--& I'm sure Drake has similar concerns. I asked the client to reboot the generator AC (breaker off, then back on) to see if he could push the battery closer to the absorb voltage that way but I am still waiting for that answer. Thanks to the clues & cues from Drake, I'll cut & paste this into a trouble ticket with OB. While waiting for that to percolate through the system, here's one more question for the hive mind: * When a Systemedge Package is purchased complete with batteries & all, are the chargers & the FNDC battery monitor already pre-programmed for the battery type & size? Here's hoping, and as always, the Wrench List is the Bomb! Mick Abraham, Proprietor www.abrahamsolar.com Landline: 970-731-4675 Cell phone or for text messaging: 970-946-6584 ᐧ
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