May 18May 18 I have a 8kw Deye Inverter and 2 x 5.1 CFE batteries. When my batteries are discharging, at times the SOC hits say 60% and then just drops to 0%. It then starts charging gets to 40% and then jumps to 100%. What would be causing this?
May 27May 27 Is your communication between your inverter and batteries working? Dip switches on Batteries correct?
May 27May 27 On 2026/05/18 at 12:57 PM, Teichmann said:I have a 8kw Deye Inverter and 2 x 5.1 CFE batteries. When my batteries are discharging, at times the SOC hits say 60% and then just drops to 0%. It then starts charging gets to 40% and then jumps to 100%. What would be causing this?This is not normal, and often points to seriously unbalanced cells, or to a problem with one of the batteries... Answering the following might help:How long have you had your batteries installed, and were they installed at the same time?How often do you charge the batteries to 100% SoC?What is your maximum charging and discharging currents set to on your inverterHow do these batteries communicate with your inverter?
May 27May 27 I thought this brand sounded familiar in a not-so-good way...Check out this old thread :https://powerforum.co.za/topic/19853-cfe-5100s-batteries-the-final-showdown-warning-its-not-pretty/
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