Generally speaking, with these respective AIO inverters, where is the supposed SOC being calculated from and how often is that source manually or auto calibrated?
I only have experience in AIOs with Fortress inverters and their evault batteries. I had a situation where the house went dark when closed-loop SOC read 35%. Some may remember from this forum, Fortress confirmed battery volts had to go above 55v to auto recalibrate. It was a Vermont mid-winter and the customer never turned on the genny because he thought the bats were safely at 35%., Actually they were close to 0% due to the lack of winter recalibration. On Tue, Jul 15, 2025 at 8:56 PM Lou Russo via RE-wrenches < [email protected]> wrote: > We definitely experience that. Mostly with Sol-Ark and Homegrid. Generator > even starts but it is not quick enough to do anything. Have the client > power cycle and everything is fine. Had this happen last week, batteries > were at 79%. > > Aloha, > Lou Russo > Spree Solar Systems LLC > C-34322 > > > > On Tue, Jul 15, 2025 at 1:44 PM Howie Michaelson via RE-wrenches < > [email protected]> wrote: > >> These are useful suggestions for how to deal with low battery conditions, >> however I understand Jason's situation to be a hardware or firmware issue - >> the inverter temporarily reads battery voltage or SOC as 0% and shuts off, >> needing manual intervention to turn back on. I'm not sure if i am having >> the same issue on at least a couple of sites with an AIO and 1 or 2 PF16s >> in closed loop, by I've seen the inverters without warning seemingly loose >> the batteries (which are in a relatively high SOC - 70-80%), see no SOC, >> then shut itself off. So far the client has gotten the inverter back to on >> by shutting it down entirely and restarting it. It fires back up and >> operates fine as though nothing has happened. Anyone else experiencing >> that? >> Howie >> Sun Catcher >> >> On Tue, Jul 15, 2025, 6:43 PM William Miller via RE-wrenches < >> [email protected]> wrote: >> >>> Friends: >>> >>> Could one set the inverter LBCO slightly above the battery LBCO? The >>> inverter is controlling the shut down and the battery does not go into >>> alarm. >>> >>> >>> William Miller >>> Miller Solar.com >>> 805-438-5600 >>> www.millersolar.com >>> >>> >>> On Tue, Jul 15, 2025 at 2:26 PM Jay via RE-wrenches < >>> [email protected]> wrote: >>> >>>> I can’t agree more that auto restart is a requirement. >>>> A well designed system that has the inverter shut off( shut down or not >>>> sure what the correct term is) due to low battery should restart in the >>>> morning. >>>> >>>> Now I could easily see that it will have to get to some X amount of SOC >>>> or volts or watts of input before it connects the AC loads. >>>> >>>> Jay >>>> >>>> >>>> >>>> On Jul 15, 2025, at 3:21 PM, Chris Schaefer via RE-wrenches < >>>> [email protected]> wrote: >>>> >>>> >>>> Mr. Bryce, >>>> >>>> As offgrid is our biggest piece of the pie, I too would like to have >>>> the AIO power back up when voltage is at an acceptable level just as our >>>> OB's, Magnum's and Xantrex's have been for years. My hope is that in the >>>> very near future a firmware upgrade would make this a selectable feature. >>>> >>>> Much appreciated, >>>> Christopher >>>> >>>> On Tue, Jul 15, 2025 at 4:35 PM William Bryce via RE-wrenches < >>>> [email protected]> wrote: >>>> >>>>> Is this closed loop or open loop? If closed loop the "rules" require >>>>> the machine to stay shutdown until the "issue" is identified. >>>>> >>>>> On Tue, Jul 15, 2025 at 8:04 AM Tyrone Houck via RE-wrenches < >>>>> [email protected]> wrote: >>>>> >>>>>> That's my understanding as well. Sure would be cool if there was an >>>>>> automatic reconnect mode that could be set. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> On Tue, Jul 15, 2025, 7:56 AM Jason Szumlanski via RE-wrenches < >>>>>> [email protected]> wrote: >>>>>> >>>>>>> With this new breed of AIO inverters, when the battery reaches low >>>>>>> voltage disconnect, do they all need manual intervention to restart >>>>>>> inverting? >>>>>>> >>>>>>> I'm having an issue with a Midnite AIO with a stack of Pytes >>>>>>> batteries that reset themselves for a yet undiagnosed reason. The DC >>>>>>> Battery voltage goes to zero on the inverter for a moment, and then >>>>>>> returns. The problem is, it requires manual intervention to push the >>>>>>> button >>>>>>> to turn the inverter back on. It does not happen automatically. That's >>>>>>> not >>>>>>> good for an unmanned remote site. >>>>>>> >>>>>>> Jason Szumlanski >>>>>>> Florida Solar Design Group >>>>>>> >>>>>>> >>>>>>> _______________________________________________ >>>>>>> List sponsored by Redwood Alliance >>>>>>> >>>>>>> Pay optional member dues here: http://re-wrenches.org >>>>>>> >>>>>>> List Address: [email protected] >>>>>>> >>>>>>> Change listserver email address & settings: >>>>>>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>>>>>> >>>>>>> There are two list archives for searching. 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