Using SmartShunt as a SOC

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, not Bat. charging)

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

This link shows correct wiring.

Thank you.

at the moment no. mppt is only connected to battery.

(‘apologies. I should have written: SmartShunt connecting Bat(try) Neg(ative) to Inverter neg(ative).)

No. mppt is not connected to the shunt system minus.

Can you direct me to reference to connecting mppt to the shunt system minus. in the manual?

(I have: 9172-Manual_BMV_and_SmartShunt-pdf-en)

Thank you all.

Simply follow the manual for the device

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?

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 example Victron’s . Here You could connect every minus, than by thick wire connect it to Shunt’s “Loads and Chargers” port. For system with only charger and inverter I would use Terminal stud and stack minuses from inverter and battery on one bolt of the “minus” Terminal, the wire to shunt on other bolt. The “plus” terminal could be used as nice place to positive wires to meet.

Of course, if the current is low, You could try to get by using ferrules made for two wires (not two separate ferrules!), but I won’t recommend it.

Nice resource for wiring is also at Your disposal on Victron’s site.

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 pre internet in parents garage as a kid blowing stuff up lol

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 & learn‘

Working now. I think. (Cloudy morning)