question

michael2019 avatar image

Controlling charge current with Quattro 15000 + BYD 13.8 pro Settings

I just installed a 15000 quattro + 2 parallel units of 13.8 BYD Box. I enabled battery monitor and I used 540AH Battery capacity. 108A as charging current (will the charging current be automatically determined by the BMS or the input battery charging current from the VE config plays a significant effect in the charging current?) float voltage is 55V, absorption voltage 55.2V. No assistant installed. No MPPT. No ESS settings.

BYDVEConfigure 3gx
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Battery low voltage data sent by the BMS is 43V, on the VE Config I set low battery shutdown to 44V. The picture of the BYD battery details and the video are attached.

Correction and further help are highly welcome

1 Answer
Guy Stewart (Victron Community Manager) avatar image

Hi Michael,

Most of the information required for using this combination is here:

https://www.victronenergy.com/live/battery_compatibility:byd_b-box

Both the charge current limit set in the Quattro and the limit sent by the BMS will be used.

The lower limit will be the one that is applied.


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