We have an installation with many hot batteries connected in parallel.
We are experiencing the following problem with ESS "optimized (with battery life)":
The system cannot hold its dynamic SOC low-limit, it drops way below it.
Could it be that ESS has a problem with the self-discharge current of the hot batteries?
The batteries slowly self-discharge through a heater to keep themselves warm. This would explain, why we are able to run ESS successfully on other installations with fewer batteries. Too many batteries and the self-discharge current would become bigger than ESS' low charge current?
In particular, from the wiki:
6: SoC has been below SoC limit for more than 24 hours. Charging with battery with 5amps
5 amps would definitely not suffice to keep more than 3 batteries warm.
Is our assessment of the situation correct?
If yes, is there a way to adjust the #6 state's charging current?
Sincerely
Ivo Graber