October 20, 20241 yr Hello, I've got a question about charging/discharging batteries from the grid when there is no power from the solar panels. Currently I've got a Deye Hybrid inverter with 10kwh Kon-tec LiFePO4 batteries, the minimum battery level is set at 35% and charing from the grid is also set at 35% target. In this setup I'm seeing that the battery keeps charging to 36% and drops to 35% frequently at night, therefore there is a constant charging/discharging activity when the battery is at the minimum level. Is it a correct setup from the battery health and cost saving point of view? Would it be better to charge from the grid to let's say 50% so the charging/discharging doesn't happen that often when I don't have power from the solar panels? Edited October 20, 20241 yr by sebastianman
October 23, 20241 yr On 2024/10/20 at 12:18 PM, sebastianman said: the minimum battery level is set at 35% and charing from the grid is also set at 35% target. It does not make sense to set both limits at the same value. There must be a range. I.e. I set "back to grid" at 47V and "back to battery mode" to 49 or 50V (15 cells). The inverters only charge from grid when in grid bypass mode.
October 24, 20241 yr 18 hours ago, Beat said: It does not make sense to set both limits at the same value. There must be a range. I.e. I set "back to grid" at 47V and "back to battery mode" to 49 or 50V (15 cells). The inverters only charge from grid when in grid bypass mode. 100 %
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