Hi folks,
I have an ESS consisting of one Multiplus II 48/3000/35 which stores the energy inside currently one (planned three in parallel) automotive LiIon Batteries with Jikong-BMS. Because I was not able to find a solution how to connect the BMS with the ESS ( my BMS only speaks serial Jikong protocol and has no working CAN ) the charger was set to estimate the SOC from batt-voltage only.
Today I was observing a very long time at the display "100% full, float..." The Multiplus showed sometimes float sometimes absorb LED. Because there was no change in shown values I inspected the Batt-storage and found a burned fuse at batt-output.
This means the Multiplus could not detect that there was no battery connected anymore and measured back its own output voltage as batt-level.
Ist this a defect or is it normal behave from Multiplus II?
Thanks in advance
-- jens