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ksmithaz1 & Tim; Thanks for the explanation. This has been an educational thread. I certainly see the perspective when the power source originates from one generator/winding. Somewhat less initiative if there are two power sources as in the case of paralleled inverters. Speaking of which can...

2 oscilloscopes 2 waveforms, 180 degrees out of sync on the time scale. One phase, 2 waveforms, really?

Totally agree. Here is thought experiment; take 2 oscilloscopes and connect one L1 to N and the other L2 to N. Would each display a sinusoidal wave form? (Yes) And if you were to super impose one wave from on top of the other would you see just one wave form (No) or you would observe two...

Thanks, that is what I thought but not 100% sure.

No doubt, its flawed on most things these days. That said this is my understanding...

Had not heard of this brand but took a look and you are correct. Does EG4 make there own stuff or are they private labeling/repacking the electronics?

Not sure if there is, but certainly not hard to do. Take 2-3K inverters, like my Growatts, configure for 120/240 (out of phase 180 to neutral) and put them in one enclosure and in essence you have a 2 phase inverter. I suspect the 6000XP does the same unless it has a auto transformer, but then...

I know you this stuff better than most so perhaps semantics, but the 120/240 volt system in the US, often referred to as split phase power, involves two 120 V AC lines that are out of phase by 180 degrees with each other relative to the neutral line. This configuration allows for both 120 V and...

Open to suggestions. Can you elaborate why the 6000 XP is superior and how does it provide 120/240 in a single unit. (Autotransformer or 2 internal inverters). Can it run only 120V or must be 120/240.?

Not intuitive why 240 appliances would be more efficient other than than IR loss, I just don't have big power draw loads. My mini splits are all 120 and they are the biggest load. I have split phase panels but have them jumper so both legs are on one phase. That way I don't have to balance...

Growatt 3000's in parallel; they have worked great but buggy MPPT wakeup and monitoring via Solar Assistant.

Considering swapping my existing inverters for a pair of EG-4 6500EX inverters. I don't have an 240VAC loads so wired my system for 120V. My understanding is the EG-4 6500EX is 120/240 with a single inverter (curious to hear how they do that, auto transformer or 2 internal inverters set 180...

I have a Daly BMS 16S on three of my battery banks. All connected (via UART) with Solar Assistant. I recently top balanced some of the cells in my bank, before top balancing any of the cells I disconnected battery from main bus bar and removed the voltage sense ribbon cable from BMS. I did not...

Finally had time to do a more throughout inspection. Found that one of the IGBT's on the main board had blown. These are rated 600V, 80A. Unlikely a voltage problem so suspect either a current issue or simply random component failure. The inverter was not connected to any loads at time of...

Inverters connected to shared 560AH battery, 2 separate 3KW PV arrays, no grid input, AC output connected to 2 separate circuit breakers which were open at time of failure.

Recently installed 2 SPF-3000TL-LVM-ES 48. Tested after installation and inverter and MPPT charging all worked fine. (No grid hookup so did not test utility charging) They worked for about a week in MPPT charging mode (inverter side was not turned on as did not have loads attached). After a...

Anyone know if Growatt SPF LVM can operate in parallel with SPF LVM-ES? I was hoping they might, as they are very similar models, with the ES version being capable of operating without battery. I have 2 SPF LVM operating in parallel and wanting to add a third and a friend has a ES version they...

Thanks for sharing this. I had the same problem of getting stuck at Block 2 after erase and had given up. After removing the wifi dongle I was able to flash successfully!

Unfortunately don't have a meter to test IR..

I was able to recover 48 of the 64 cells. I first charged them slowly at 5A until voltage came up from 0 to 3, then charged them fully at 30A to 3.65V. I did a capacity test then recharged. Capacity of the cells I tested was > 260AH . They are now back in service and working okay. Will be...

A neighbor ran his 16S LiFePO4 EVE 280 battery bank down to zero while he was gone for an extended period. I am trying to see if it can be brought back to life. I have charged up some of the cells and then tested capacity, and measuring 250-280AH on various cells. Based on a single test it...

Had not considered a USB isolator before. I assume high speed data and power isolation, like the ones used to eliminate audio interference? Thx

Thx, was hoping for something easy to improve data communications. Any other suggestions out there?

I have struggled to get stable communication between my Growatt SPF inverters and Solar Assistant running on Orange PI. It works at times but get frequent CRC errors. I have tried different cables, purchased cables with ferrite chokes, re routed cables, wrapped them in foil, etc. Sometime I can...

Thanks, I will check that out

Unless battery negative is somehow considered neutral in your system, I don't see why it matters, current flow will be interrupted (assuming a correctly rated interrupt device is used.)

Thanks! I see you had the 6500's in the past but now using Victron. Problems or just upgrading?

If the EG4 6548 is basically the same as the MPP 6548 (with a prettier enclosure) how does it achieve the 500V PV input verses 250V for the MPP? Are they using a different MPPT board? Just curious?

Any update on when email alerts may be available? My wish list; email alerts and show all cell voltages (when connected to BMS) rather than just high, low, average...

For sure, but what if it suffers no damage? It is not bi directional but does it matter if no damage occurs and the downstream unit throttles sufficiently to avoid voltage rise that could damage loads on the panel? Dumb question, does AIO means all in one and if so what are the functions...

Thanks, can you elaborate as to why? Is it because a standard battery inverter cannot phase shift to throttle the grid tie inverter (hence the use of a smart meter) or potential damage to the battery inverter or ???

@MajicDiver; Thanks for the additional info, very helpful. When and if you figure out a DIY alternative to the ARO batteries please let me know. Would like to do the same but don't have the necessary back gound on the comms side of this.

Great feedback. So you are using one of the MIN as the battery inverter the other as PV inverter? What batteries are you using with the MIN? Below is what I was thinking, the battery inverter I was considering is the SPF-48V

For those that want to give it a try; this is the firmware Growatt says will correct the issue of PV not resuming. Caution; My attempt to flash this firmware crashed and took out all MPPT functionality. Would not charge. Had to revert to earlier version to get MPPT tracking functionality...

Excellent! Thanks!!!