question

bluenomads avatar image
bluenomads asked

BMV702 monitor 2 batteries of differing voltage?

We are planning on separate 48V (house) and 12V (start) batteries.

The BMV-702 can monitor the voltage of 2 batteries. We will have the shunt with the negative-to-12V-battery coming off on the shunt input side, and the main 48V battery is the fully measured battery. The B1 would go the 48V positive.

Can the B2 go to the 12V positive?

Will the BMV702 show the different voltages?

...or should we just get another BMV and hook it into the Cerbo GX through USB?

BMV Battery Monitor
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1 Answer
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wkirby answered ·

Starter battery or Auxiliary battery Voltage range is 6.5 - 95V. So, yes, you can connect B2 to a 12V start battery with a 48V house battery on B1.

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