Thanks for the information. I emailed both SMA and Midnight and we'll see what they say.
On Tue, Nov 25, 2025 at 7:08 PM William Miller via RE-wrenches < [email protected]> wrote: > I just left the temp sensor dangling in mid air. This way the Sunny Island > at least could react to ambient temperature. > > > William Miller > Miller Solar.com > 805-438-5600 > www.millersolar.com > > > On Tue, Nov 25, 2025 at 6:10 PM Jerry Shafer <[email protected]> > wrote: > >> William, Wrenches, >> I have done several over the past couple years, the only issue I had, I >> needed to build a resister that mimiced the BTSas 75 degrees, because the >> SI.s will brop and raise max voltage according to the temp, this must be >> changed to prevent this as the battery BMS will or at least should do that >> anyway. Now I dont know about your batteries and I would suggest that you >> look at the battery cables sizes, I looked at a system that had these so >> called hight output batteries with # 8 plug in cables, worked very poorly >> just a FYI >> Fun times >> >> On Tue, Nov 25, 2025 at 9:42 AM William Miller via RE-wrenches < >> [email protected]> wrote: >> >>> Jim: >>> >>> I haven’t tried lithium batteries with a traditional charge controller >>> yet. All of the equipment you list was designed for lead acid. The >>> narrower voltage range of the lithium may confuse the charge controller. >>> Same with the AGS triggering. >>> >>> I know if you call SMA for tech support they may hang up on you when you >>> tell them there are lithium batteries. >>> >>> It may work right away or you may spend a lot of time making it kind of >>> work. I hope you can make the client understand this is an experiment. Tech >>> support from the battery manufacturer may not be great being a Chinese >>> company. >>> >>> These days I pair lithium only with inverters designed for them. >>> >>> Good luck. >>> >>> William Miller >>> Miller Solar.com >>> 805-438-5600 >>> www.millersolar.com >>> >>> >>> On Tue, Nov 25, 2025 at 7:33 AM Jim Gowdy via RE-wrenches < >>> [email protected]> wrote: >>> >>>> Hello All, >>>> I have a client that just got some lithium batteries and they have >>>> a sunny island inverter with a Midnight Charge controller. I've heard and >>>> experienced integrating Lithium batteries into a Sunny Island inverter is >>>> challenging and could create problems. Has anyone had experience with >>>> these batteries or installing lithium batteries with these components? >>>> Below are some details about the system so far..... >>>> >>>> System: >>>> 48v >>>> >>>> NEW BATTERY: >>>> China Aviation Lithium Battery CO. >>>> model: CA180F >>>> nominal voltage: 3.2v >>>> rated capacity: 180Ah >>>> rated energy: 576Wh >>>> >>>> Inverter: >>>> Sunny Island >>>> model: SI 4548-US-10 >>>> >>>> CHARGE CONTROLLER: >>>> Midnight Solar Classic 150 >>>> >>>> SOLAR ARRAY: >>>> N/A....it was dark when I was at the site so I couldn't take any notes >>>> >>>> >>>> >>>> -- >>>> Jim with Gowdy Electric >>>> Cambria, Ca 93428 >>>> business 805 927 2630 >>>> cell 805 975 5279 >>>> _______________________________________________ >>>> 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. When one doesn't work, try >>>> the other: >>>> https://www.mail-archive.com/[email protected]/ >>>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >>>> >>>> List rules & etiquette: >>>> http://www.re-wrenches.org/etiquette.htm >>>> >>>> Check out or update participant bios: >>>> http://www.members.re-wrenches.org >>>> >>>> _______________________________________________ >>> 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. When one doesn't work, try >>> the other: >>> https://www.mail-archive.com/[email protected]/ >>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >>> >>> List rules & etiquette: >>> http://www.re-wrenches.org/etiquette.htm >>> >>> Check out or update participant bios: >>> http://www.members.re-wrenches.org >>> >>> _______________________________________________ > 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. When one doesn't work, try the > other: > https://www.mail-archive.com/[email protected]/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- Jim with Gowdy Electric Cambria, Ca 93428 business 805 927 2630 cell 805 975 5279
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