October 21, 20232 yr I return with a last year question: I have a battery Pylontech us3000c and an inverter Mpp Solar 5048 MKX series - set to PYL. Settings are SLB&UCB charger source priority. Output are at SBU. Why time to time I have err 04 low battery or battery under shutdown altough the battery is above 45% to 100% charged? Thank's.
October 22, 20232 yr 12 hours ago, Gabriel Dragos said: I return with a last year question: I have a battery Pylontech us3000c and an inverter Mpp Solar 5048 MKX series - set to PYL. Settings are SLB&UCB charger source priority. Output are at SBU. Why time to time I have err 04 low battery or battery under shutdown altough the battery is above 45% to 100% charged? Thank's. What is your load when you get this error? If you only have 1 of these batteries it is too small for a 5kW inverter. The recommended discharge is only 37A per battery which is around 1.8kW.
October 22, 20232 yr Author Even if the load is under 1kwh and battery have between ex 40 at 100%, and solar is in full charge, i have err 04 1,2 times/min.
October 22, 20232 yr That is strange on a full battery, the only other setting I would think of is setting 29, low DC cutoff, if that is set too high, I don't think that is set automatically by the BMS comms.
October 22, 20232 yr Author Even if the load is under 1kwh and battery have between ex 40 at 100%, and solar is in full charge, i have err 04 1,2 times/min. Setting 29 is automatically set at 45V. I try to change it. Maybe the cells are out of balance?
October 22, 20232 yr 2 hours ago, jumper said: the only other setting I would think of is setting 29, low DC cutoff, if that is set too high, Yes. See FAQ #1.
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