Victron BMV 712 Shunt Charge Voltage setting. Battery, 240v charger or BCDC charger float value?

DIY
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Hi, just with the BMV 712, “Charge Voltage”. Is this value for my AGM battery float voltage (13.6) my ctek 240v charger float voltage (13.6) , or my bcdc redarc in vehicle charger float voltage (13.3).

I see it says take 0.2-0.3A off this value, but I am not sure which value to use. Lowest or highest of the charge devices I use?

Sorry I did search the forum but did not seem to see it asked before.

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@alby80
You will find varying opinions. Sometimes the settings have to be tweaked depending on your charge sources. But a good start point is below float value for AGM. See the manual here.
The top of the chapter has a video. The charged voltage is based on your battery specs needs not what the chargers actually provide. So what are they designed to float at?

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Awesome, I will set it to what the battery floats at, which for this AGM is 13.6V. So I guess setting it at 13.3V is a good start.

Thanks

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Have a look at this FAQ, personally in mobile applications I use 0.2V lower than absorption setting on the charger but that is mainly due to solar charging requirements. If you fit solar in the future then you need to use 0.2V below absorption.

https://community.victronenergy.com/t/shunt-battery-monitor-jumping-to-100-or-reporting-a-high-soc-when-the-volts-are-low-and-or-the-bms-has-disconnected/88

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Thanks for that link. I see my BCDC in vehicle charger is 14.4V absorption voltage, my Ctek 240V Charger is 14.4 absorption voltage, and my Solar Redarc regulator is 14.4V absorption votage also.

The specs on my AGM battery say Absorption=14.7 , float=13.6.

In this case with the varying charging options, do you think there is any harm setting the Charge Voltage Setting on my Victron BMV to 14.2V in this case?

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Your charging voltages are similar to mine and I have my BMV set to 14.2 and it works well.

Corrected to state 14.2V

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