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I had the BVS connect to the starter battery yesterday and the voltmeter showing house battery (105Ah 12V LiFePO4) voltage went crazy and showed voltage climbing, it got up to 17V then I shut everything down. I'll try BVS connected to house battery later this morning.

I'm using 4AWG everywhere.

roger that. I'll add the solar shunt in to the diagram and post it, let me know what you think then if you can. Think I owe you a cold one already ;) Appreciate it.

yep all wired and powered.

Thanks for your help so far. Ok a bit of progress - I've got both meters now showing correct and current Amps. But, I think they could both just be showing the draw on the battery. I'll try and getting a diagram of wiring going now.

yep

@Brewman here's what i have got so far as a wiring diagram My test circuit is currently all of what is shown this diagram, with the exclusion of the car/starter battery and associated switch. With this setup I've now got the correct amps showing on both the battery monitor (Renogy monitor, not...

@Fred S and @Brewman here is what I have as a wiring diagram so far My test circuit is currently all of what is shown this diagram, with the exclusion of the car/starter battery and associated switch. With this setup I've now got the correct amps showing on both the battery monitor (Renogy...

alright cheers. Many thanks

(y) thanks

rockin' roll! let me take a look over now :))

?thanks

ok so, is the following true. Your edit represents three monitors/shunts that work as follows: 1). a battery 'summary' monitor - this will show (in simple terms) both of either power being taken from battery or power/ charge going to battery from Solar and car Alternator? 2). a total DC load...

Hey @RandyP thanks for your response. here's the updated diagram. You said I don't have a main fuse for the battery in there..? I have the 60A ANL fuse (circled in pink) - not sure where else you would be talking about?? Happy to replace that 60A ANL for an equivalent rated CB to ensue the...

whoops sorry I think my reply seems to have been to the wrong message (I'm pretty new to forums... sorry..)

If you take a look at the wiring diagram below of what I've got mounted in the back of my car and have any experience with the Renogy battery monitor help would be greatly appreciated. Alternatively, if you know nothing about the Renogy battery monitor but see something that I am doing...

I'm using this Renogy, it has no display. Due to lack of display I've spec'd in the bayite shunt/monitor to show the power production of the solar panel and then utilising a switch to flip the shunt wiring to have the monitor show any charge from the solar that is going back to the battery after...

@Brewman howdy mate. I've had a good crack at implementing your suggestion, I hooked it all up to car as follows (minus the solar as don't have the panel yet) and spent time with some free software getting this swanky wiring diagram together I've got the battery monitor showing all the current...

I've had a good crack at implementing Will's blueprint with the addition of a Renogy battery monitor and a Bayite as a total DC load monitor. I hooked it all up to car as follows, 4 gauge wire everywhere (minus the solar and solar shunt/ monitor as don't have the panel yet) and spent time with...

does anybody know if the Battery Voltage Sensor on the Renogy DCC50S should be connected to the vehicles starter battery or the house battery?

does anybody know if the Battery Voltage Sensor on the Renogy DCC50S should be connected to the vehicles starter battery or the house battery?

@Ampster - yep all wired and powered. @Brewman (sorry about the delayed response here, I'm Australia and was asleep when you messaged back) - yes! that is exactly what I'm trying to achieve. I'm using this Renogy for the 'summary' battery monitor and the same Bayite monitor as you are for my...

(sorry about the delayed response here, I'm Australia and was asleep when you messaged back) - yes! that is exactly what I'm trying to achieve. I'm using this Renogy for the 'summary' battery monitor and the same Bayite monitor as you are for my 'total load' monitor. The problem I'm having is...

Greatly appreciate the responses here guys. I also reached out to Renogy support and they have since replied as follows: "Hi Harley, Thank you for contacting Renogy support. The battery voltage sensor is to be connected to the house batteries." Ticket ID 164011 ---

yep clamp over cable multimeter shows current is flowing as does the battery monitor that is hooked up and working properly.

@RandyP if the starter is chassis grounded and the starter negative is connected to the DCC50S neg and the LiFePO4 neg is connected to the DCC50S neg that mean that the LiFePO4 is connected to a chassis ground - right?

correct, load is not on the inverter, load is on the battery and the battery monitor is showing correct current. My test circuit has been simple: battery to a control/ switch box with negative bus bar and fuse box with fridge connected (thought a simple testing circuit like this would be best...

Ok great, that makes sense @RandyP many thanks.

in reference to the renogy DCC50S does anyone know if the BVS cable should go to the service battery or the starter battery?

I've got a battery monitor up and running no problem, but I want to now install a second shunt and digital ammeter to monitor my DC load - hoping for some help on how to wire up the shunt as I cannot get anything to work