[RE-wrenches] Pytes E-Box 48100 batteries with Midnite AIO

Wed Apr 23 04:56:29 PDT 2025

I just made a happy discovery. Swiping left in the Midnite app from the
system home screen gives you a treasure trove of information, including the
MPPT performance data I was looking for.

Jason Szumlanski
Principal Solar Designer | Florida Solar Design Group
NABCEP Certified Solar Professional (PVIP)
Florida State Certified Solar Contractor CVC56956
Florida Certified Electrical Contractor EC13013208

On Wed, Apr 23, 2025, 6:46 AM Jason Szumlanski <
jason at floridasolardesigngroup.com> wrote:

> Hi all,
>
> Maverick's advice was tremendously helpful.
>
> My first Midnite AIO install was successful. The physical installation
> went very smoothly considering it was a retrofit and we had to live with
> what was there already. The programming took a couple of calls to tech
> support.
>
> I connected the Pytes E-Box stack to the AIO with an Ethernet cable and
> with PYLON selected I was able to see the battery SOC of 45%, which matched
> the LEDs on the batteries. But the AIO would not charge from solar or
> generator. I was confused about this and it was getting late, so I
> unplugged the cable and set the AIO to Lithium No BMS and it started
> charging instantly. So something with the battery comms was telling the AIO
> not to charge. I need to take another run at this and make sure the dip
> switches were set correctly. I really want to get closed loop comms working
> here.
>
> I still don't have the manufacturer voltage setpoints for the Pytes, so I
> set them to what I think is reasonable for now at 56.0V absorb and 54.0V
> float. It seems impossible to contact Pytes by phone, so if anyone has the
> setpoints documented, I would love to get those.
>
> Here are some lessons learned and odd quirks about the Midnite AIO in
> general.
>
> - Only bring battery cables into the leftmost knockout. Otherwise they
> will make accessing the MPPT inputs difficult.
> - Read the manual for startup instructions. The first time you start it
> must be from the app. The physical button won't work.
> - If you have a Samsung Galaxy Fold, the WiFi settings can only be set if
> the phone is closed.
> - The Smart Load outputs will not work unless the main 100A Load Output
> breaker is on. This was driving me crazy. The whole home only needs 50A, so
> I was using the 50A Smart Load Output only due to existing wire size. It
> would not come on even though it was programmed to be on all the time. I
> finally realized the smart load breakers get their input from the main
> breaker output. That is not at all apparent (and not documented).
> - It's a little hard to see the MPPT inputs unless you get the right
> angle. More importantly, check the polarity very carefully. The individual
> inputs have negative on the left. This could easily be mistaken since the
> battery inputs have positive on the left. I wish they made this consistent.
> - The Neutral bus also puts wires in front of the MPPTs. If you can land
> your PV strings first, that is highly recommended.
> - I was surprised to see that the app has no individual MPPT performance
> data. I'll have to check out the desktop version. I hope that data is
> available.
>
> That's all for now. If I gather more tips on my next trip, I'll add them
> here.
>
> Jason Szumlanski
> Principal Solar Designer | Florida Solar Design Group
> NABCEP Certified Solar Professional (PVIP)
> Florida State Certified Solar Contractor CVC56956
> Florida Certified Electrical Contractor EC13013208
>
> On Mon, Apr 21, 2025, 11:43 PM Maverick Brown via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
>> Jason
>>
>> I think you are in good shape.
>>
>> I’ve installed about 40 of them mostly on Sol-Ark. closed loop.
>>
>> 1. I also have 8 Pytes connected to Schneider InsightHome. I set the
>> Pytes to Luxpower ( dduudd ) which means 001100 on the 6-pin dip switch.
>> BLU & BLU-wht (pin 4 & 5) at the CAN port of the battery. InsightHome
>> thinks it is talking to Pylon batteries.
>>
>> 2. Also, when I plug the MidNite Powerflo16 into insight home, same
>> story: BLU & BLU-wht (pin 4 & 5) at the CAN port of the Powerflo16 to
>> Insight, which thinks it’s talking to a Pylon battery.
>>
>> Therefore: put the Pytes DIP to 001100 and use standard rj-45 cable to
>> AIO. They will talk to each other as Pylon protocol.
>>
>> If AIO has Pylon as a setting maybe that’s better. Maybe it will also
>> work with MidNite battery setting in the AIO?
>>
>> Also, the 4-pin vs 6-pin batteries may have a different firmware version,
>> so make the master a six pin. Just set the 6-pin on the master and leave
>> the rest of the battery dips off. It’s easy to upgrade the firmware via
>> HyperTerminal and that might be a different truck roll.
>>
>> Wire the Pytes Link ports, master link1 to slave link0 (slave link1 to
>> next slave link0), last slave link0 is open. Turn on all the rocker
>> switches, then press the Master RED SW button. If all other batteries wake
>> each other up, you’re good!
>>
>> I have a ton of Pytes resources.
>>
>> [image: preview.png]
>>
>> pytes-v5-quick-start-guide
>> <https://www.solar-electric.com/lib/wind-sun/pytes-v5-quick-start-guide.pdf?srsltid=AfmBOoq9kLATNxlud7QRCEhbAc39uyu3-INy0UJ74lfBylgg3wbHmnnG>
>> PDF Document · 983 KB
>> <https://www.solar-electric.com/lib/wind-sun/pytes-v5-quick-start-guide.pdf?srsltid=AfmBOoq9kLATNxlud7QRCEhbAc39uyu3-INy0UJ74lfBylgg3wbHmnnG>
>>
>> <https://www.solar-electric.com/lib/wind-sun/pytes-v5-quick-start-guide.pdf?srsltid=AfmBOoq9kLATNxlud7QRCEhbAc39uyu3-INy0UJ74lfBylgg3wbHmnnG>
>>
>>
>> P.S. the MidNite Pro App to setup the inverter the AIO installer /
>> editing password is superadmin, all lower case.
>>
>> I installed my first MNS AIO today. I still need to setup installer
>> verses user concept, but it was straightforward beyond that.
>>
>> I have open loop settings as well that I set for Outback, etc. I can send
>> those as well.
>>
>> I’m interested to see how it goes!! Send photos. ;-)
>>
>> Thank you,
>>
>> Maverick
>>
>> Maverick Brown
>> Off-Grid Solar Commander since 2006
>> Maverick Solar Enterprises, Inc.
>>  • Solar Commander Remote Power
>>  • SunFlow Systems Cathodic Protection
>> maverick at mavericksolar.com
>> 512-460-9825
>>
>>
>>
>> On Apr 21, 2025, at 4:29 PM, Jason Szumlanski via RE-wrenches <
>> re-wrenches at lists.re-wrenches.org> wrote:
>>
>> 
>> I have a client with eight Pytes batteries (not v5) where I am upgrading
>> them to a Midnite AIO tomorrow on an emergency basis. I can't find any
>> integration information, so I assume they cannot talk in a closed loop.
>> That's okay, however, I also can't find charge voltage set points for these
>> batteries anywhere.
>>
>> Does anybody know the absorb and float voltage of these 51.2V nominal
>> batteries?
>>
>> Also, I noticed some of the batteries have six dip switches, and some
>> have four. I assume these are just different versions. Anything I should be
>> aware of? It looks like they simply Daisy chain together with ethernet
>> cable for battery comms. No dip switch settings are required for inter
>> battery communication. It looks like the dip switches are just for inverter
>> comms.
>>
>> Thanks,
>>
>> Jason Szumlanski
>> Florida Solar Design Group
>> _______________________________________________
>>
>>
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