I had a new inverter (GivEnergy hybrid gen 3) fitted on Wednesday. He did a firmware update on my batteries (3 x GivEnergy 5.2). Everything seemed fine but today I realised status light on two of the batteries was showing red. I tried to empty my batteries this evening Only one worked, the other 2 are still 100%. I have looked at Notifications and it said a firmware update had failed. What do I do now. TIA
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#1 Cby