Hellos. 
 

I previously posted that my inverter and batteries were not communicating correctly. I managed to get a properly working communications cable. I now have a slightly different issue I would appreciate some assistance. 

• What is the correct voltage for back to recharge the batteries. Currently set at 48.0 V, I noticed that depending on the power usage the inverter would start to recharge if the batteries from grid even if the batteries have a like a 80% charge because the voltage dropped below 48.0V (3.3kw) if like a kettle or microwave was used
• On the other hand the batteries can drop below 10% if there is no spike in usage and would only charge if purposefully spike the voltage, the batteries dont auto start to charge even when the low battery warning has started around 20% left
• The inverter throws an error 69 and beeps, disconnects from the solar, I was under the impression the solar would handle the load in the event the batteries are fully charged

1. Looking for the batteries to charge when the low battery warning starts to beep

2. Looking for the solar to manage the load after the batteries are full

PLEASE HELP

Hi WezHo.

This is my setting with a Kodak King and 3 x Pylontech us 300c batteries.

I am also running Solar Assistant.

Thank you so much Jacques. 👍

My setup:- 

• 5kw Kodak King
• 3000c Pylontech x4
• 660w panels x6

I will try the above settings you mentioned. I have tried the 47.0 V setting for back to grid however the batteries have dropped to 90% usage. I was wanting for the batteries to start charge when the low battery warning comes on which is generally around 80%  usage. Will check if all works out based on the provided settings

I will update the back to battery voltage as 50.0 V, i currently have it set to full

My max charge current is 140 A

My max grid charge current 2 A, will update

For best results look at getting Solar assistant.

This will assist a lot with controlling your inverter and allows remote changing and monitoring.

Regards

Thank you for the feedback Jacques. This morning i could confirm that the batteries dropped to 10% before the grid kicked in to charge, which i am happy with for now, ideally i would like it to kick in at 20% before grid charge.

I have tried with the installer and SegenSolar, but with no luck for the correct settings. Its now that i turn to this forum for assistance. Your help has greatly reduced my grid usage 

Voltage setting on Lithium is very difficult to manage.

Seeing that one can only make 1 Volt changes.

Solar assistant gives you this option which you can tweak.

 

 

that's very cool. This would definitely improve the lifespan of my batteries.