Louwrens

Hi everyone, on commissioning a 5kW Sunsynk, with load isolated, PV charging batteries and inverter Normal indication ON. When the GRID supply is switched on the supply voltage of 230V is registered but after the 60 second timeout the main the Main Grid supply CB trips. Can anyone help on this problem?

I have a Sunsynk 8kW and a 200Ahr Narada btty. I made the comms cable as per Sunsynk manual (Inv pin 1 to btty pin 3; pin 2 to 2 & Pin 3 to 1); Inverter Btty setup Li; RS485 Protokol 16; Activated is ticked; Inverter firmware is CommE426 & MCU6022-1724; I cannot get the Inverter and the Btty to communicate. What else do I need to do? Plse help!!

I have a Sunsynk 8kW and a 200Ahr Narada btty. I made the comms cable as per manual (Inv pin 1 to btty pin 3; pin 2 to 2 & Pin 3 to 1); Btty setup Li; RS485 Protokol 16; Activated is ticked; Inverter firmware is CommE426 & MCU6022-1724; I cannot get the Inverter and the Btty to communicate. What else do I need to do? Plse help!!

Do not know reason for dead cells - await the repair report

Hello everyone, thank you for your interest in this topic. I decided not to charge the batteries and the owner took them to Hubble in JHB. They found one dead cell in each battery and shipped them to CT for repairs. I believe it is critical to revive LiFe's correctly with controlled current levels and correct voltage levels and NOT to couple a flat battery to a fully charged battery.

Thank you TaliaB, you confirm the concern I had.

Due to an Inverter / user problem I have two fully discharged AM2 5.5kWh Hubble batteries and one fully charged battery. Can I couple the flat batteries to the fully charged battery? If not how do i charge them as the Inverter is not hybrid and cannot start up with flat batteries?

Thank you I will use your recommendation

I have a Mercer SOL-I-AX-5P inverter. The inverter manual only refers to Gel and Lead acid batteries. Can I couple a LiFePhos battery to it? Can this inverter communicate to the BMS via the RS232 port?