Ryeman

The link is to the  LR5-72HPM -555M panels which is 415W panels and not 555W panels, is this the right link.
Edit: Apologies, my mistake 🤐, the link is correct, somehow I was hoping it has 11A max current and focus on the NNOC value showing the 415W and not the correct STC value showing the 555w. 

Sorry do not have Equipment for "Bar Graph", but I measure the voltage while the Axpert Cycles and it is sitting constantly on 51V, also measured the individual batteries and they are all sitting at aprox 12.8v after standing disconnected from the inverter for 12+ hours.  (No warranty unfortunate)
Think I will have to take in the unit for Repair quote, any recommendation on a repair centre I can use in Centurion/Pretoria after lockdown. 
Hope there is no load shedding in mean time 🙂 

No display, just the 3 leds flic's on and off, every second 😞  

This has been a great thread and big learning curve. Big thanks for all the input from everyone, I have also been able to extract the data via rs485 and build first draft dashboard for my Sunsynk 5.5kw. (The data will still smooth out 😀)
Doing this via below path with 1 min update:
1) Synsync-> Rs485 -> RPi4 -> Node Red(on RPi) -> InfluxDB (On Rpi) -> Grafana(on Rpi)
2) AGM Battery -> BMV -> RPi4 -> Node Red -> InfluxDB -> Grafana

 
I have also tried to map the Modbus registers to the  values on the Sunsync display that could assist. (might be room for improvement or corrections)

 

This has been a great thread and big learning curve. Big thanks for all the input from everyone, I have also been able to extract the data via rs485 and build first draft dashboard for my Sunsynk 5.5kw. (The data will still smooth out 😀)
Doing this via below path with 1 min update:
1) Synsync-> Rs485 -> RPi4 -> Node Red(on RPi) -> InfluxDB (On Rpi) -> Grafana(on Rpi)
2) AGM Battery -> BMV -> RPi4 -> Node Red -> InfluxDB -> Grafana

 
I have also tried to map the Modbus registers to the  values on the Sunsync display that could assist. (might be room for improvement or corrections)

 

Here is a link to the sunsynk  technical support where a suggestion is made on how to prolong your lithium batteries.  I am also new to the Lithium batteries and Sunsynk5.5  and have started with their suggestion (Just adjusted for my 7.4kw SolarMd battery capacity - in my case the half point is 3700 and not the 4800 as on screen belof for their 9.5kw batteries ).
https://www.sunsynk.org/forum/techical-support/how-to-prolong-lithium-battery-life-overspec-a-bit-the-rest-of-the-tweaking-is-maybe-not-worth-the-complexity
 

Here is a link to the sunsynk  technical support where a suggestion is made on how to prolong your lithium batteries.  I am also new to the Lithium batteries and Sunsynk5.5  and have started with their suggestion (Just adjusted for my 7.4kw SolarMd battery capacity - in my case the half point is 3700 and not the 4800 as on screen belof for their 9.5kw batteries ).
https://www.sunsynk.org/forum/techical-support/how-to-prolong-lithium-battery-life-overspec-a-bit-the-rest-of-the-tweaking-is-maybe-not-worth-the-complexity
 

Thanks, I do not have PV array connected thus could not try that, I ended up taking the unit in for repairs on Saturday  to Nungu Solar and got back the repaired unit today.  They will still send me the report on what was faulty  but the receptionist indicated they had to replace a card in the unit.
Will install and monitor, thanks for all the suggestions and feedback.