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derek-foster asked

BVM 700 not showing power consumed

I have a 170ah Renogy lithium battery, BMV 700 monitor with a bluetooth dongle to connect to the app, and MPPT 100/50, also connected to the app.

I did a full charge yesterday on shore power, synched SOC to 100%, and reset battery history, since when I've used about 80% of the charge (voltage is just over 12). My State of Charge is still on 100%, and Consumed Ah at 0.0. The History shows discharged energy at 0.0 Kwh.

Any ideas?

BMV Battery Monitor
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1 Answer
kevgermany avatar image
kevgermany answered ·

Probably wired incorrectly. The only connection to the battery negative is the shunt. Battery earths through the shunt, not direct.

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