Daniemj

I am selling a Battery Cabinet It is in excellent condition.. It can take 3 BSL batteries (5.4 kWh or similar size). Price R3000 or nearest offer. Pretoria East

Thank you. I got the contact details of an installer from ITS Pretoria. Just wanted another option to compare installation costs with...

Good day everyone. We are considering the installation of 2 x 4.5kW Super ITS Heat Pumps on our farm in North West close to Swartruggens. Can anyone suggest installers that is reputable and would be able to install those Heat Pumps for us? Both geysers are outside on ground level so the installation should be fairly simple for someone who does these kind of installations.

Hi Charles, Thank you for the info. I have forwarded your details to my installer. I am sure he will contact you. Regards Danie

Hi. I have contacted my installer. He has seen this before on an installation with 5 BSL batteries. At some stage those batteries have discharged to 0% and shutdown. After they have been stated up and charged again the problem was gone. After checking all possible settings we decided to discharge this battery also until it shuts down. We did that, reset the battery and started it up again. The battery is much better now but not up to spec yet. Before the BMS would limit the max discharge current form 105A to 30A anytime it discharge at a rate in excess of 50A. Now the BMS will limit the discharge to 30A as soon as it discharge at a rate in excess of about 75A (3800Watt). If it is according to spec it should be able to discharge at least up to 100A (with a max of 105A)

I agree that it has to do with the battery and its BMS. I will see how things develop before using the manual settings instead of the BMS. But thanks for that info. If I have to I will use it, since the installation I am talking about is for my monther in law who stays next to me. She is living there by herself and it is not ideal to have the power go off when it is most needed.

I hope it has to do with the balance of the cells and not a faulty cell. The battery is new and it normally stays full unless it is discharged during load shedding at night. I will change the program so that the battery is discharged each night and charged the next morning. It could be that one or two cells are way out of balance and then triggers the low voltage warning which then reduce the discharge amps. I must mention that so far after a reset, the battery did perform normal even with a load put onto it. You mentioned a program that shows each cell voltage. Where can I get such a program? Currently I am using the Solarman APP.

Hi. We have installed a 8.8KW Sunsynk Hybrid inverter with a 5.1 Kwh BSL lithium battery. The system was running perfectly but it has developed an interesting problem. For the second time now during load shedding at night (battery only source of power), the BMS of the battery changes the Discharge current limit from 105A to 30A. Then, as soon as the load goes over 30A the inverter drops the load in order to "protect" the battery. Once the whole system is shut down and the battery is reset, it displays the correct value of 105A. Thereafter the system operates normally again (for a day or two until next night time load shedding) Any suggestions as to what could cause the battery to change the Discharge current limit (during load shedding)?

Hi Youda, I have bought a SNMP web card from Geewiz and installed it into my Infinisolar 5kw inverter. I had several issues though: 1. I could only get it to work with the web server. 2. I could not get it to work with any of the Solar Power Software. 3. It would only work for anything between 6-24 hours and then it would connect but the data would be "frozen" from the time that it stopped feeding any info from the inverter. It would then only work again after I power down the inverter. 4. It worked for less than a month and now my SNMP manager cannot even pick up my inverter, although the green light is on and the orange LED light is flashing. I noted that on the Voltronic website the protocols listed for the web card gives the folowing: TCP/IP, UDP,SNTP, HTTP, DHCP, SNMP v1/2/3,SMTP The Protocol listed for all the cards I can find online only list SNMP1 and SNMP 2. Does that have anything to do with the fact that it does not want to work with the Solar Power Software? I am willing to buy another web card, but then I want the solar Power Software to work and also not to stop working after a day or so. Any suggestions? For information, I am also running the ICC program at the same time.

The uneven discharge did not get better. I bought the batteries from Gary Bowes at Solar and Inverter Warehouse in Meadowdale, Johannesburg. (R13750 each, Vat incl) He followed it up with Pylontech but he said they mentioned something about firmware but also that it is within specs. They will take some time before they change it, so he offered to change it for me now. I wanted a 5th battery so I bought another yesterday (at the same special price) while changing the problem one for a new one. Today was the first morning, and I am happy to see the SOC of all 5 batteries are close to each other! Problem solved, thanks to excellent service from Gary!

My infinisolar 5 kw inverter use a little bit of grid power every now and then during the night when it is supposed to carry the load on battery only. This happens when the inverter is both on "Grid-tie with backup IV" as well as "Grid-tie with backup III". It might also do it on some of the other settings, but these are the two that I am currently using. It does it less with backup IV. In backup III it used a lot of grid power once PV start to produce power (switching from pv unavailable to pv available mode). I actually preferred backup III because I can delay the battery charging to later during the day, but it uses more grid power compared to backup IV which is exactly what I don't want. It does not seem like a lot, but it does use more than 1kWh from 21h00 till 07h00. I suppose I can switch the Eskom feed to the inverter off at night once it is on batteries, but then I do not have the grid backup and also that is not how it is supposed to work. It is almost as if it is getting worse lately. It did not do it so much a while ago. Should I maybe consider a firmware upgrade, or maybe do a power off on the inverter to do a kind of reset?

Thank you very much guys. It is good info. Will give it time.

As you could see, the SOC of the first 3 batteries range between 36% and 37%, but battery number 4 have a SOC of only 21%. 20% SOC is the minimum what the batteries want, so this difference is huge. I have tried the battery balancing tonight, so I will see what happens tomorrow. The initial picture showed that the SOC was 100% on all 4 batteries before they have been used through the night. They also powered the geyser (2000W element ) for 35 minutes between 23H55 and 00H30.

This is what it looks like this morning. Going to do the battery balancing as per video posted by Chris.

Thank you. This makes sense to me since I have added a new battery to 3 fully charged batteries that has been in use for about 2 weeks.