December 4, 20232 yr Hi all. I have a kodak VMIII OG3.24 paired with 1 off Giter G2500-24 battery So I recently noticed quite a high discrepancy between my battery SOC led's and what my inverter is reporting. The led's will indicate a SOC between 75-95% (4 led's on) while the inverter shows battery capacity at 47%. Also there is no indication on the inverter screen that BMS is functional. Even if I unplug the BMS cable nothing happens, no errors, no led's going on or off, no change at all. If someone can shed some light I will appreciate it. TIA
December 4, 20232 yr 44 minutes ago, sjp100 said: Hi all. I have a kodak VMIII OG3.24 paired with 1 off Giter G2500-24 battery So I recently noticed quite a high discrepancy between my battery SOC led's and what my inverter is reporting. The led's will indicate a SOC between 75-95% (4 led's on) while the inverter shows battery capacity at 47%. Also there is no indication on the inverter screen that BMS is functional. Even if I unplug the BMS cable nothing happens, no errors, no led's going on or off, no change at all. If someone can shed some light I will appreciate it. TIA Could be that the inverter is only using volts and not getting it from the BMS and reports much lower
December 5, 20232 yr Author 21 hours ago, Scorp007 said: Could be that the inverter is only using volts and not getting it from the BMS and reports much lower That just seems like another sigh that the BMS is not working
December 7, 20232 yr On 2023/12/05 at 7:13 PM, sjp100 said: That just seems like another sigh that the BMS is not working If you pull the cable out and the inverter doesn't complain then you are probably set to User battery mode which will run on volts. For BMS comms to work you need to change to PYL or LIB or LIC and have comms on RS485 to the battery. It is likely that it won't communicate, the axperts are a bit picky with batteries. This is also why the inverter has a different soc level to the battery, it is guessing based on your charging and cutoff voltages... the battery is correct.
December 7, 20232 yr Author 11 hours ago, jumper said: If you pull the cable out and the inverter doesn't complain then you are probably set to User battery mode which will run on volts. For BMS comms to work you need to change to PYL or LIB or LIC and have comms on RS485 to the battery. It is likely that it won't communicate, the axperts are a bit picky with batteries. This is also why the inverter has a different soc level to the battery, it is guessing based on your charging and cutoff voltages... the battery is correct. Thank you, I had the wrong profile selected. It is working now ass it should
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