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randy-putnam asked

BMV712 battery cable extension from 500A smart shunt?

I’m adding a BMV712 with 500A smart shunt to monitor 2 battery banks. The 2 cables supplied for connection to battery positives are each 2m in length. If one of my battery banks requires a longer cable to reach the positive can I splice in the necessary length (no more than 30cm) without compromising the electrical integrity of the cable?

BMV Battery MonitorSmartShunt
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ecowhale avatar image
ecowhale answered ·

It sounds negligible enough that the meter numbers will be the same, but if the decimal were longer, there might be a difference like this: 4.402 amps vs. 4.403 amps.

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randy-putnam avatar image randy-putnam commented ·

Thanks. I’m also thinking about just hooking up my Battery Sense to the engine battery and monitor it’s temp and voltage via my Victron Connect app. If I do this I’ll get the temp sensor for the BMV 712 and connect it to the LFP house bank.

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Victron BMV battery monitors product page

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