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Anyone besides madsci1016 got that working? He doesn't charge with the SI.

Sounds like you're not closed loop or your BMS is not working properly or need the BMS settings change. Please let us know if you figure it out.

Maybe there's some combination of settings that will let the system run forever, but I've tried many things and no matter the SI eventually gets off sync from the actual SOC. It's impossible to use the lower part of my battery safely without a potential shutdown or my batteries drained to 0...

DIY cables do not have galvonic isolation, thus not as safe and may be problematic.

Astunus, you said Victron equipment uses the same CAN messages 0x351, 0x355, and 0x356... Does this mean it's comm is compatible with SMA SI inverters? Could I use a victron controller and tell it I have a Victron Inverter but connect it to the SI? So it sounds like you have a single bms and...

I think you have to use an external shunt since the SI does not see the current going into the battery and account for it.. otherwise get rid of the midnight charger, replace with a sunny boy and let the SI do the charging.

I have 90KWh of lithium on my 4 SIs running VRLA now for 9 months off grid mode, but they automatically connect to grid when low SOC happens... Works perfectly except the low end of SOC can get off sync from reality and couple days ago the SI drained them to 0 instead of connecting to the grid...

I don't think there is a SI lithium software option, if true it probably only talks to super expensive batteries... I have a mix of EG4 and DIY, they all connect together to a 500A victron smartshunt. The Smart shunt is awesome and calculates SOC charge but does not communicate with the SI as...

48V packs, 5 DIY from single cells, then I realized rack mounts were so cheap... the rest 3 flavors of gyll rack mounts. The 2 low packs are the new $1500 packs from signature solar. Maybe I should ask for replacements, or maybe it's ok, not sure...

In regards to the video, personally I'm seeing one potentially big issue with paralleling several large battery banks, and that is at low SOC. I have 17 packs with a total capacity of 96kwh. When I bring all the packs down some go down much farther and I worry if they can get damaged?? At a...

I see SMA has a free webinar on the Data Manager M Content: Use cases, functionalities and additional products in combination with the SMA Data Manager M Live demonstrations: SMA Data Manager M, I/O system for temperature measurement, energy meter for load visualization...

I have several EG4s, they even have a CAN connector but no docs to connect to SIs, so I'm forced to do open loop. I'd be very interested if anyone finds a way to run them closed loop, maybe I'll get around to doing it but if open loop works well probably not going to happen.. madsci1016 got...

I now have the Data Manager M running that I scored on eBay for less than half price.., Gives me GUI to the SIs looks like sunny portal. Have not setup sunny portal yet, not sure if it give me anything but remote access which I can do myself anyway...?? All my SBs and SIs show up and it give...

Can you use these in the same bank with standard LiFePO4 batteries? I have a couple 48V packs, I want to use along with some standard 48V packs. Best I can tell the max charge voltage is slightly less and the internal resistance is about 1/2 of the normal packs. When I connect them together...

Can anyone tell me if it's OK to mix these batteries with standard LiFePO4 batteries? I mean in I have a couple 48V packs I want to use along with some standard 48V packs. Best I can tell the charge voltage is slightly less and the internal resistance is a about 1/2 of the normal packs. When...

I'm sure they did not plan obsolescence, it's just that the A123 batteries are slightly different chemistry that's actually better but more expensive and thus did not take off and they shut down manufacturing. The A123 batteries I'm guessing have an IR that's 1/3 that of conventional LiFeSO4...

Wonder if electric instant water heaters do the same thing and stuff harmonics into the line? I have a couple that pull 13kw, so I wonder if they may cause trouble once I switch them onto the SI grid soon... hmm.

I plan to use a cheap 1 to 3 phase converter for an old lathe, would that give the SBs the same problem, what sort of problem did you see? How do you handle not enough battery capacity, I'm in the same boat as I wait for delivery. Thinking now that I will trigger connect to grid with low SOC...

You'll never see that deal again because the billion dollar pozi scheme has been fully liquidated now.... I also wish to have got a few extras.. Ok, I was sorta right, I can't use lithium mode, because the RPi is not doing the job of battery management, madsci1016 was just passing SOC from the...

Ok, so maybe it does charge in lithium mode, not sure why I thought otherwise... madsci1016 does charge via PV in DC side and not use the SI. Toms, if you have any SI settings suggestions or info on SI setup it would be appreciated... I will try to get the RPi working with can bus, but I'm...

When you set mode to lithium the SI no longer charges the battery! madsci1016 uses a PV DC charger. I have the smartshunt only for monitoring the system, you don't need one if the SI does the charging. Hopefully in VRLA mode it still puts out power in/out on the can bus..

I have 4 SIs and 4, 7kw sunny boys, they seem to work together great with frequency shifting. But still new system learning curve. I'm adding a data manager very soon, it should give nice GUI to the SIs. I use a victron GX device (homebrew Pi3) planning to monitor the SIs with special CAN...

Did you figure it out? I have 4 of the same units and got them to work and see all 4 by using RJ45 8P8C splitters on the 485 connections and using the green cables on the 485 instead of battery comm. Not sure what the battery comm connections are for on this version. I did find if the first...

Hmm... Being new to Sunny Islands and doing a new large install with 4 of them right now.. I much welcome any suggestions on setup.. My plan was an off grid system with 2nd AC input in permanent generator mode but connected to the grid for backup.. I don't have nor plan to buy a gas...

Solar Tech, Can you explain how the SI is setup to charge the GYLL batteries? From what I gather setting them up as anything but lithium will result in poor battery usage and setting up as lithium requires a can bus BMS communicating with the Sunny Islands?? Thanks!

I'm in process of building a system like this picture that was on a Signature solar Gyll post. They would not give me any info on it, so wonder does anyone know who's system it is and/or how they might be handling the battery BMS to the Sunny Island communication? madsci1016 are you sill using...