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I also considered this option. But there are some downsides to this. Another option I considering could be an option is to "cheat" with the SOC value by changing the rated capacity of the cells. in that way I hope that I can use voltages of the cells to determine when the battery is decharged...

A short update. The Deye inverter is apparently not involved in the Force Charge. it's initiated by the Seplos BMS 2.0 sw 16.6. None of the monomer or packet low voltage values are reached. I disabled all safety features (for now) and other fetures that I think could influence the behavior...

It's absolutely true that it's safe to go down to 3,0V. it's also true, and very well documented, that you can't rely on the standard settings of inverters or battery packs. Of course some people prefer to live in blissful ignorance.

All grid charging disabled

I tried with no effect. see attached picture taken right before it starts to charge. This time i tried Lithium mode 12 to see if communication protocol influences the behavior.

I will try. Meanwhile my question is: Are anyone able to use energy stored on a lithium battery between 5-10% SOC with a Deye hybrid inverter?

honestly, I did. but I has no effect after the inverter has entered this "safety mode"

The Time of use is set to 5% and NO grid charge. It is not a matter of the battery is settling. When it hits 9%, within 10s the current drops to 0 and ramps up to charging at 100A (current setting for max charging) and after approximately 11 min. 13% is reached and decharging starts again.

I understand the risk, but - I think its safe to decharge to 5% SOC. - I find that it's very inappropriate that the inverter goes into this endless loop of charging and decharging between 9-13%.

I agree, but it does charge from the grid!

It recharges the battery even if grid charge is disabled! It is not the BMS that that is "asking" to be charged. I have checked all settings including soc warnings. in addition I have monitored the Bms while it happens and no criteria is fulfilled that triggers an alarm or warning.

When the battery is decharged to 9% the inverter immediately charges it to 13% and then this cycle is repeated infinitely. This happens independently of the settings in the battery pack and the settings in the inverter. I have set the low battery to 5% and the shutdown to 3%. In addition, in...

Thanks for your answer. I did set the BMS to use the pylon/seplos protocol. I found that it worked with lithium mode 12, maybe a coincidence? What do you mean by it works better with mode 00? What does this lithium mode mean? Only the communication protocol or does it influence other settings in...

I have a Deye SUN-12kw hybrid inverter connected to a Seplos batteri with BMS V2. Which Lithium mode would be correct to use when setting up the inverter? Deye have recommendations in their "recommended battery" document, which unfortunately does not include Seplos products. I have used...

Did you solve the problem? I did not find any specific instructions on which Lithium mode to use with the Seplos BMS. Seplos batteries are not included in the list of recommended batteries for Deye, why? I ended up using Lithium mode 12 because thats recommended for Pylontech batteries, which to...