it is definitely not the case of PV not covering loads. I have plenty of PV. there is something else happening that I’m not understanding. It is as if the battery gets slightly overcharged, then has to discharge itself. but none of the math of the remote console makes sense.
System is programmed like this otherwise:
- dvcc is on, with shared voltage and current sense as well as temperature sense.
- The jk bms is in charge of charging and discharging
- generator auto start when soc drops below 15%
- float voltage: 53.6, absorb voltage: 55.2 ; absorb time : 1 hr (set in JK BMS)
JK BMS settings and parameters:
Thanks for your interest in this. I would love to figure it out. I am hoping it is a voltage calibration issue, will test that tomorrow.
It is as if the BMS is asking for 53.6V, but when the MPPT’s give it, it considers it too much and starts discharging. but not a little, really a lot. today it discharged 6 hours long around 350 Watt, basically constantly. (with occasionally charging happening, but overall the soc dropping, even though there is non stop sun) (location: portugal)