Logic28
New Member
A few days ago I started my newly built 304A Battery managed by the Seplos 200 16s BMS and was trying to obtain a full charge and full discharge so that the BMS could asses the full capacity correctly and stopped the process when it read 10% but not knowing if that was the real value.
1) Do I have to set all parameters such to reduce the cells voltage down to 2.5V in order to read the full capacity just as I've done for each cell before assembly?
2) Today during normal operation, charging/discharging, the battery suddenly dropped from 95% to 12.5% interrupting the inverter and the charger but still showing a Pack V of 53.39 and all cells were balanced to 1/2 mv deviation, all this with no reasons or warning what so ever, so I quickly disconnected it and carried on with my spare 5.2K battery.
Surely that reading of 12.5% doesn't match the voltage status.
I could not have drained it as the PV had produced today 11.9kWh and at the time only 6.1kWh had been drawn for usage and all the rest kept the battery charged up to 94% until the sudden drop.
Is this a BMS mistake perhaps?
3) if so how can I reset the BMS to a vergine status so to start from scratch by fully charging it and fully discharge it or will it fix itself after another full charge?
I really appreciate your inputs as I could not find any clue on the manual or in related threads so far.
Many thanks
1) Do I have to set all parameters such to reduce the cells voltage down to 2.5V in order to read the full capacity just as I've done for each cell before assembly?
2) Today during normal operation, charging/discharging, the battery suddenly dropped from 95% to 12.5% interrupting the inverter and the charger but still showing a Pack V of 53.39 and all cells were balanced to 1/2 mv deviation, all this with no reasons or warning what so ever, so I quickly disconnected it and carried on with my spare 5.2K battery.
Surely that reading of 12.5% doesn't match the voltage status.
I could not have drained it as the PV had produced today 11.9kWh and at the time only 6.1kWh had been drawn for usage and all the rest kept the battery charged up to 94% until the sudden drop.
Is this a BMS mistake perhaps?
3) if so how can I reset the BMS to a vergine status so to start from scratch by fully charging it and fully discharge it or will it fix itself after another full charge?
I really appreciate your inputs as I could not find any clue on the manual or in related threads so far.
Many thanks