Dynamic ESS does not charge fast enough to reach target SOC

[robmeerwijk]

I thought I had the same problem, so I switched from Battery BMS to Lynx Shunt for higher precision thus preventing the rounding error. That did not improver behaviour.

DESS charges only 1-2 minutes per quarter due to hourly SOC target communicated every 15 minutes

Update 3 — Switched to Lynx Shunt (decimal SOC precision) I switched the battery monitor from the Seplos BMS (integer SOC) to the Lynx Shunt, which reports SOC with decimal precision. Result: the stepping pattern disappears — charge power now ramps down smoothly and continuously over the 15-minute window rather than in discrete steps. However, the fundamental problem remains: every quarter, charge power starts near 7kW and bleeds down to near 0 by the end of the window. This rules out integer…