Actually, my problem was that my SOC was toping at 89% and the EasySolar didn't accept to charge the batteries anymore.
After a little discharge, (SOC at 84% this morning) it finally accepted to charge them.
Now the question is "Why does the EasySolar don't realize that the battery is full ?"
Is there a way to reset the soc at 100% ?
Please tell me if I am in the wrong way of thinking.
Config : EasySolar 3000VA 48V - 500AH LeadAcid Batteries - 2000W solar panels - set up 1 month ago.