Stop Solar charging at 90% SOC
I would like to be able to stop charging my batteries at a high percentage SOC in order to prolong Battery life, but my sunsynk 5.5kW hybrid inverter just keeps on charging to 100% then starts exporting to grid.
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My understanding is that 100% is not only fine for the batteries but also needed to balance the internal cells of the battery as not all reach 100 at the same time. Apparently this is why it can take quite a long time to actually reach 100% from some SOC in the 90’s.