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

Wed Apr 23 03:46:59 PDT 2025

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
> _______________________________________________
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20250423/b7f8fb86/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: preview.png
Type: image/png
Size: 395100 bytes
Desc: not available
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20250423/b7f8fb86/attachment-0001.png>