Hi All,  
The solar assistant has shown me alot more details:- I found out that the solar cut out when the batteries are at 97%, and reconnects, charges the battery and cuts out again, and its a up down situation. I'm worried that this will reduce the life span of the batteries. Need to get the Solar to constantly stay on once the batteries are fully charged  

Setup:- 5kw inverter + 4x3.5KW pylontech + 6x660w solar panels

Inverter settings:- Battery cut-off voltage: 46.0v, Back to grid voltage: 48.0v, Back to discharge voltage: 49.0v

• Connected Inverter to Solar Assistant via Micro USB Cable
• Connected Battery to Inverter via BMS cable

What inverter? I think the Growatts behave this way by design. 

I have the KODAK King Model: OG-Plus 5.48. Its a Axpert re-branding as i understand 

I have the BMS cable connected and the inverter disconnects the solar. However when i update the settings from Pylontech BMS to User the state of charge drops from 97% to 57% but the solar handles the load which is good for the day time. 

Hope i can get some settings update to keep the solar as first preference for load then battery then eskom 

 

Edited September 23, 20232 yr by WezHo

> However when i update the settings from Pylontech BMS to User the state of charge drops from 97% to 57% but the solar handles the load which is good for the day time. 

 

I have been wondering the same about my KODAK 7.2OG with Revov R100s. The inverter constantly shows the battery levels as between 20%-80% (when batteries are empty, the inverter thinks they are at 20%, and when the batteries are full, the inverter thinks they are at 80%).

I suspect this is because of the suggested (by Revov) settings: https://revov.co.za/wp-content/uploads/2022/09/Kodak-REVOV-Manual-V1.pdf (page 21+)

**The Just**

- 12: 49V

- 13: 55V

- 26: 55.5V

- 27: 54.5V

- 29: 48V

 

I hope this settings help some, but your battery supplier might have different recommended settings.
 

I purchased Solar Assistant and through that interface I managed to find the right settings. After much playing around on Solar Assistant, I managed to resolve the issue. Solar Assistant which was such a huge help in correcting my issue. 

Basically i changed the following:- 

• Battery from Inverter settings to Emulated BMS
• I had both the Micro USB from inverter to Solar Assistant and Voltronic RS232 from inverter to Solar Assistant. I removed the RS232. 

Current Connection:- 

• Pylontech Cable from Master Battery to Inverter
• Micro USB from inverter to Solar Assistant

Changes Experienced:-

• Battery now shows 100% charge and not 97% at full
• Solar remains on to manage the load after battery has fully charged
• No more fault 69 or error 61 with current set up show below
• Battery charges from the grid at 20%, and not at a voltage spike
• Max current max charge current of 50A from solar, 10A from grid

Some screen grabs of my setting for Solar Assistant if needed, hope this helps others with similar issues