August 22, 20232 yr 14 hours ago, jumper said: This is likely because the inverter is not staying at the absorption voltage for long enough and going to float before the battery is at 100% and not allowing cell balancing to take place. At 96% is usually when the battery is balancing and needs up to 1 hour for it to hit 100% and the BMS to stop the charging. I am not sure if SA actually controls the inverter to keep charging until 100% or merely reports what is happening, but it doesn't look like it keeps it in absorb until 100%. First thing I would do is change the absorbtion voltage to 56.4V, I needed that to get the battery to 100% and then change the timed absorb setting to 60mins and see if it manages to get to 100%. While it is balancing the battery will look like it is switching on and off, but it will be changing from charging to standby and back for quite a while before hitting 100%, this is because the BMS will be limiting the charging current while balancing. It also won't climb up, it will jump from 96% to 100%. Thank-you @jumper. I will action as per your proposals.
August 23, 20232 yr On 2023/08/22 at 9:33 PM, Vassie said: Thank-you @jumper. I will action as per your proposals. @jumper, Is the timed absorb setting set via Program 32 (equalisation charging time) on my Axpert inverter?
August 24, 20232 yr 9 hours ago, Vassie said: @jumper, Is the timed absorb setting set via Program 32 (equalisation charging time) on my Axpert inverter? It might be that you don't have timed absorb, in that case you can use the equalization setting at 56.4V for 1 hour, it'll do the same thing.
August 24, 20232 yr 12 hours ago, jumper said: It might be that you don't have timed absorb, in that case you can use the equalization setting at 56.4V for 1 hour, it'll do the same thing. Thank-you @jumper.
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