Kvz

Hallo, Some bad experience with Dyness Techical support. I react to this post and contacted Ludwe in Cape Town last year about a faulty 3.6Kwh B3. He told me to take it to CNBM at the Cape Town Airport. I handed it in on the 20 November 2023. I contact Ludwe via e'mail on the 4/12/2023. He told me they are working on it and or may replace it. It went quiet for a while. This year on the 5 February I went back to CNBM to look for my Battery. They could not found it and told me Ludwe does not work there anymore. They promised me that they would found it and let me know. No phone call. I went back there on the 12 of March. I told them I won't leave without my battery. Everybody was looking and they found it but must put it together. They then asked if they can fully charged it overnight. I agree. Obviously they must checked it out. I picked it up the next morning. It is still FAULTY. It Discharge normal until it hit 57% then it rapidly discharge. When you charge it it charge normal till 72% and then just shoot up to 100% I got 4 of these batteries and they are all registered with Dyness.

Thanks Wilco. Some info I pick up. The new Firmware I am running now on my WPV is also for the ES. The Menu's changed and added. But they take away the Bonding relay contact. Also when you upgrade your Inverter you sometimes have to upgrade your Batteries. Dyness. That is what Aspergo suggested I must do. That will sort the High voltage Alarm 3/36. Or I will rollback to a version 048.02/049.02_20200907 which is a higher number then 041.03/041/03_20210203 but it is only for WPV Inverters.

Hallo Guys. I am another frustrated customer/installer. I installed a SPF 5000TL HVM-WPV with 2 x 3.6Kwh Dyness and 5.2Kw PV. For myself. I used RS485 for the BMS from day one. October2020. It was working fine (80%) until I experience that my Batteries SOC drifted apart. One night it switched of due to one battery below it's voltage. My Firmware was still original. After I saw that Strauss upgraded his WPV I asked Growatt for the Files. I got it from two different directions. Both the same. I flashed the two files in the folder to the Inverter. Version 040.03/041.3. Inverter worked fine but during the night it lost its BMS connection and there after randomly. By the way you can use CAN or RS485 on the upgrade. Either this version is no good or I need to upgrade my Batteries also. Never ending. Andy from Aspergo is also involved. The latest version looks like 048.02/049.02 for the Inverter. In the Menu 24 is also missing. For dry contacts , Bonding Relay. Koos