ConradDeWet

Yes, i have something similar - while i don't have any PV connected yet, the Web/App reports almost complete garbage. According to the Web/App, my batteries are bouncing around between 100% and 50% almost all the time, regardless of the grid/charging/discharging. The LCD display though appears to represent the battery correctly - In the few times i was looking at the battery during load-shedding, i did notice one bar off the battery icon on the Inverter LCD. I read somewhere (it may have been on this site), that when you set the battery type to "Li", and then "Profile 2" (menu 36), it springs into life of accuracy... and starts showing things in accurate percentages. For now... im just leaving it the way it is. The fact that you have to use different combination of settings to any documentation supplied probably means if you left it up to the inverter to have the right internal settings to get the battery work... well, lets just say... you go first.

Well, yes... in one of the posts in this forum, someone mentioned Dan, from DC Rebel (https://www.dcrebel.co.za/). He was extremely helpful! Firstly, you need to know that the Dyness 9.6kWh "Powerbox" as they call it, is nothing more than 4 "Dyness 2.4kWh LiFePO4 Batteries", packed in a lovely wall mountable case, with the batteries mounted two at the top, and two at the bottom. To access the DIP switched, you need to unscrew the white case: The (unreleased) documentation says the master battery (bottom front) must be set to 0110 in order to talk to the Growatt-SPF. However, this didn't seem to make any difference to me. Dan was kind enough to bring round a "special" cable for the Dyness to the Growatt (an orange one), however we didn't use the "Li" settings of the battery type (menu option 05) that requires the BMS communication to be in place anyway. We used the User settings for battery type (menu option 05), then: 19 (Charge Voltage) = 52Volts 20 (Float Voltage) = 52 Volts 21 (Max Dischange) = 45 Volts With these settings in place I have not had any more issues - except it can be a bit strange as the outer case lights go orang some times, Dan says its fine, he called it something like "balancing". It's been in place a few days now, and after I put these settings in, it all seems to be working fine.

Hi All, I have just installed a Growatt SPF 5000TL HVM 5kVA/5kW connected to a Dyness 9.6kWh Lithium Battery, however the communications (via the BMS connection using the RJ45 cable) does not appear to work. When I set the battery type to “Li” (Lithium), the inverter stops and the error code 20 (BMS communication error) shows on the screen. I'm assuming this is because a standard fly-lead that was shipped with this kit... simply will not cut it. I can see in the product manuals, the pins for the Inverter and the Battery are described (although I have some confusion with their descriptions) 1. Does someone have an accurate wiring diagram of how that cable must be wired? 2. Also, the manual says the Dyness Battery factory default communications protocol is CAN, but the sticker on the side of the battery, says RS485. So what is it? and how would you change it to RS485 (there are no DIP switches or anything on it)? 3. And finally, the Growatt offers 4 Protocols once you select "Li"... but there is literally no information about these. What protocol number must I use? Thanks