who controls the max 90 % discharge?

[paulrobby]

Have 5 pc Pytes E box 48100R 5.12 kwh batteries in a system with 3 Victron Multiplus II inverters and a Cerbo Gx communication centre.
Using VRM software/app to manage the system.

On the controls page i can select minimum SoC ( State of Charge) and this has now been set at 10%, because i know these batteries discharge up to a max
of 90 %. The question however is whether this 10 % is ON TOP of the 10% the battery allows to discharge so in reality 20% of its capacity..or it it really the 10 % limit the battery is allowed to discharge.?
or differently ....Does the battery itself allow discharging further then 10 %? Must we use VRM to prevent further discharging and limiting the lifecyle of the battery?

The basisc questions is WHO or WHAT limits the max discharge of the battery? The VRM managing software or the battery itself?
thanks for answering.
paul

 

[sunshine_eggo]

The basisc questions is WHO or WHAT limits the max discharge of the battery?

When a BMS is communicating with the Cerbo, the Cerbo controls the system based on the instructions it receives from the BMS. Voltage and current limits specified in DVCC will override these if they are more conservative than the BMS instructions.

Other layers of control can be imposed by assistants like ESS.

Where are you setting these 10% and 90% values?