PV conected to VE Charge controller. Charge controller connected to LFP battery. Battery connected to VE 12/230 V inverter. SmartShunt connecting Bat Neg to Inverter neg. Everything works! Can anyone help me turn SmartShunt into a SOC meter? (at the moment, it’s only reporting Bat discharging,…

This link shows correct wiring. [image] Shunt / battery monitor not reading the correct SOC/ Amps, missing solar, decreasing daily or other misreading problems DIY This topic covers the SOC / Amps reported by BMV battery monitors, SmartShunts, Lynx BMSs and Ly…

[image] water_rat: [image] Tsu: SmartShunt connecting Bat Neg to Inverter neg. Confirm that the mppt is connected to the shunt system minus. Thank you. at the moment no. mppt is only connected to battery. (‘apologies. I should have written: SmartShunt connecting Bat(try) Neg(ative) t…

Simply follow the manual for the device [Screenshot_20260114-210851_Chrome]

Thank you. water_rat says: mppt needs connection to the shunt system minus. What’s the best practice to connecting mppt to the shunt system minus. two ferrules in same mppt terminal?

[image] Tsu: says: mppt needs connection to the shunt system minus. What’s the best practice to connecting mppt to the shunt system minus. two ferrules in same mppt terminal? Am I correct to think that Loads & Chargers (In image 1234enough sent )includes mppt and inverter? in parallel?

“Loads and Chargers” in Victron’s diagram means exactly that, It could be also called “EVERYTHING except battery minus”. So it’s every device’s minus except battery - this is the only way Shunt knows what is happening on the way to battery. The best practice is to use some kind of busbar - for exam…

Tsu, you might want to learn the basics of parallel / series configuration before any physical connections take place. Google it & learn, as asking if mppt & inverter are parallel is clearly having little or no comprehension of electrical principles. Ps we all had to learn at some point, i learnt …

Thank you JanisD. I have a lot to learn. (not as much as ‘some-people’…) The principal of direction of flow between Load and Charge controller, must be why they all appear in one box in VE drawings. I’m sure it’s simple-when-you understand it… Hope someone has a better advice then ‘google it & le…

Working now. I think. (Cloudy morning)

Using SmartShunt as a SOC

Q&A and troubleshooting

water_rat (klim8skeptic) 14 January 2026 09:29 2

Confirm that the mppt is connected to the shunt system minus.

Shunt / battery monitor jumping to 100% or reporting a high SOC when the Volts are low and/or the BMS has disconnected - DIY - Victron Community

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Using SmartShunt as a SOC

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