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Oliver avatar image
Oliver asked

VE.BUS Rebulk / FloatExitVoltage Lithium batteries

Where can I please find more detailed information on the Ve.Bus Charging conditions? I want to know the following: Lithium batteries and charge curve fixed: How is the float exit voltage calculated?

To be more precise: I need to know the voltage threshold (and the duration of its condition) that triggers a new complete cycle (ve.config "Absorption time")?

--Apparently according to a previous answer for Lithium/24V it is -0,4V.

And what else condition other than time must apply to trigger the repeated absorption (ve.config "repeated absorption time").

I am missing this information in your documentation (maybe my fault).

My question is related to my observation that always the 1 hour setting is triggered and never the 15minutes.

This is a 8cell LiFePO4 example setting

1687414779920.png



battery chargingLithium Batterymultiplus ve.bus
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Paul B avatar image Paul B commented ·
a lot of this can depend on the BMS installed. a propper lithium bank should have the bms connected to the victron system, as then the BMS controls the charging and discharging at the CELL level, in my opinion this is very important.



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Oliver avatar image Oliver Paul B commented ·
My question is not BMS related.


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