Can anyone suggest an advanced programmable 12 V battery monitor & relay that doesn't use a shunt?

DIY
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1

I’m looking for a 12 V battery monitor that doesn’t use a shunt, but can be programmed to trigger a relay on voltage conditions I define instead of the pre-programmed selectable variety - like the BMV 712 but without the shunt.

Many thanks

2

Provided it’s for Lead Acid batteries then a Smartgauge will do what you need. It’s old tech with the advent of LifePo4 batteries but works well with LA or AGM.

3

Sterling suggestion! It is indeed for lead acid batteries.
Many thanks

4

No shunt !

5

You can use a shelly uni to measure voltage and control a relay. Another shelly device. I do this very cheap, AC DC.