Schnavel

@Powerforum Store , any chance of purchasing a used US3000C battery in good condition? I'm presently looking for an additional two batteries, in good condition, with around 1000 cycles.

Between myself, my dad, and my father in-law, we have 21x US3000C batteries, all varying around 1000 to 1400 cycles. So far, we haven't had any issues, but all of the feedback on this forum concerns me greatly. Further to this, I have a friend who traded in his batteries on this deal and the trade value for batteries with less than 1000 cycles was incredibly low (R2000 per battery). This is very poor for batteries that have only used 1/6th of their design life (1000/6000 cycles). Based on this, I would rather purchase a different brand going forward.

Please let me know if the payment didn't go through and I will take it!

100% agreed, and I already have Home Assistant running, so it will tie in perfectly. The issue is I don't presently have the time to move the setup across to SA and HA, carrying over automations etc. I will get to it at some point...

With ICC / ICM no longer operational, is there anyone who still has access to the license key register? @Marius2001 I had a Pi fail on me and now I have purchased a new board, but the old license key is now no longer valid and I'm stuck. Otherwise, I'm going to have to move over to solar assistant, which I don't really want to do, as my setup is running smoothly.

It's not working - please can you post the file here

Hi @Jeremy H Any idea of number of cycles? Where are you based? How much are you looking for per battery?

Some great advice here! Going offgrid requires one to be mindful of your power usage, especially on days when you have poor sunshine

I see the link no longer loads and I have just had a SD file get corrupted with a recent power failure. Any chance you still have a copy or a working link?

Any idea on the number of cycles?

I didn't make any changes to the setup on the inverter, but I'm still keeping an eye on the fans to ensure that they are all spinning freely. In terms of the high temperatures, I ended up installing a vent fan in the roof above the inverter. In winter I don't have any problems as the ambient temperature is low. In the summer months, my garage gets rather warm. The vent fan helps to keep air flowing through the garage and helps to expel a lot of the hot air from the inverter. I noticed a roughly 10 degree difference in temperature with the extraction fan running.

Thanks @uDuWaR, but my inverter has 2x MPPT inputs. Looking at you original post, I managed to figure out the problem. The correct line is PvWattsTotal (the small v was causing an issue). I just edited my .yaml config and it is up and running.

Thanks for the great post guys - I have just installed HA and I'm in the process of setting up all of my sensors and dashboards. I'm still new when it comes to programming on the .yaml configuration, but for the life of me, I cannot seem to be able to get the values for the amount of PV produced. I'm using the following: - name: "Solar_PV_Watts" state_topic: "ICC-Master/Inverter/TotalPVWatts" unit_of_measurement: "W" state_class: "measurement" device_class: "power" This seems to fall in-line with what @uDuWaR so kindly posted. However, I have been unable to get it to work. When I review the entity, it just states that there is no information available. I have managed to get all of the other variables to work, but stuck on this one.

Just an update - system has been up and running now for a week. While we are still waiting for stock of solar panels, my in-laws are already saving money as they are no longer having to run the generator during loadshedding. It's considerably cheaper to charge the batteries via Eskom in comparison with the running costs of a generator.

As the system has only been running for a week, I also suspect it has something to do with the balancing. Initially, the batteries got very warm as they were balancing out, but now they remain cool and always seem to reach the same SoC when fully charged. I will bump up the bulk voltage by 0.1V to 52.6V and the float voltage to 52.5V for the interim to see if the batteries get fully charged and then equalise. Once they consistently reach fully charged, I will reduce the float voltage back down to 51.8V and then monitor the behaviour of the system.