This topic covers the SOC / Amps reported by BMV battery monitors, SmartShunts, Lynx BMSs and Lynx Shunts and will just be called shunt below. It is also assumed that the shunt is monitoring the domestic / house / cabin battery bank and not engine start / bow thruster / winch / caravan mover battery…

Question on this as my house has two lead acid in parallel and then another chassis wire that goes to starter negative for some reason. Therefore I would have three wires connected to that post. Not sure how else to do this as I need the house bank in parallel. Thanks

The drawing only shows one battery, if you have 2 house batteries in parallel then you can connect both house battery negatives to the battery negative bolt on the shunt. The negative connection between the house battery and the starter battery MUST connect to the load side of the shunt.

Shunt / battery monitor not reading the correct SOC/ Amps, missing solar, decreasing daily or other misreading problems

DIY

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Shunt / battery monitor not reading the correct SOC/ Amps, missing solar, decreasing daily or other misreading problems

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