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Lithium battery with dropping SOC %



Hi All

I am new to the forum and I was wondering whether you could assist me.  Has anyone experienced the situation where the SOC on your Lithium battery is gradually dropping?  

I have a 48v 100ah Narada Lithium battery that used to be connected to a Mecer Axpert 5kva inverter. The problem started when I changed inverters to a new Sunsynk 5KW variant.  The Narada battery is not one of the batteries compatible with the Sunsynk using a RJ45 cable link to interface the battery management system on the inverter.  On advice from the suppliers of the inverter it has been set up as a lead acid battery.

Float and charge voltage settings in new inverter are the same as they were in my old Axpert and also as per the battery user manual.  52 V float and 54V charge.  The voltage on battery and inverter correspond.


Any ideas to rectify this problem?



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