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I do, it was working properly with the FLA before. The SOC corrected itself in the right direction today, not sure how but it is only a 20% difference now. Still confused why the BMS on the EG4's are going into OV protection, I have not observed any voltage over 57.5V.

What about firmware to communicate with SMA sunny islands?

I have been running my EG4LL's in open loop for 3 year now but would love to run them in closed loop. I did a deep dive when I first installed them and seemed it wasn't possible. Can you explain how to download battery protocol and run in closed loop?

Thanks for the reply, all my charge values are pretty much at the minimum allowed. Here are what I have my values set at BatrChrgCurMax 1000A AptTmBoost 60min AptTmFul 60Min CycTmFul 30Days CycTmEqu 180days ChrgVtgBoost 2.26V ChrgVtgFul 2.3V ChrgVtgEqu 2.3V ChrgVtgFlo 2.2V BatChrgVtgMan 54.5V...

I have got my system working now. I had to put the SI battery settings as a 46V system instead of 48V. I haven't had a trip on the BMS sense and the SOC finally is close to the same on BMS and SI. The BMS SOC drops faster than the SI SOC which is better than the otter way around. As for...

Thats awesome, your the first person I've heard getting closed loop to work with Eg4ll and SMA. mind telling me how you did it?

I have EG4ll 48V V1's... Is there any way to get the V1's to work closed loop?

Thanks for all the ideas! My BatrChrgCurMax is set at 1000A, each EG4ll is rated at 100A, I have 12 so that would be 1200A max I set it slightly lower. I doubt that limit has been approached, haven't run any big loads and charging doesn't put out that much. My thought is that it is the AC...

So I've been trying to get closed loop com to work with my eg4-ll v1 48v battery pack and sma inverter. From digging through threads I have found no solution. I haven't heard anyone pitch this solution though. What if I bought a lifepower4 unit with com hub, which says it supports closed loop...

Hi, I recently replaced my old lead acid batteries with new signature solar eg4ll batteries. System specs Two Sunny boys AC coupled with Two Sunny islands 10,000W PV running two the sunny boys 1 outback flexmax80 with 3000W PV 12 (48V) signature Solar EG4ll LFP Batteries (60KW)(1200AHr)...

I have had my setup working for the last 5 months or so. Its not perfect but it is functional. had to set it as a 46V system instead of 48V. The main problem is the SOC doesn't match up. The Battery BMS SOC drops faster than the SMA so I don't the system shutting off when there's still juice left.

You do it in new battery set up.

That's amazing, that's the first response I've gotten that says closed loop is possible with SMA. Is this a recent occurrence? I have ordered a DTECH cable from amazon as some people have said is the correct cable...