Voltage monitor?

[hardtop]

I need to carefully monitor my starter battery voltage. Right now a multi-meter works for voltage readings, but its a bit cumbersome. I looked at Victrons offerings but their monitor comes with a shunt and that is more than I need. Is there a quality device that I could attach that would transmit voltage over Bluetooth and/or have a display on it that I could attach to the battery/battery box?

 

[KnobCountry]

victron has a voltage only monitor that transmits bluetooth to the vc app

"victron smart battery sense". it is not a shunt and does not measure current in or out.

 

[sunshine_eggo]

victron has a voltage only monitor that transmits bluetooth to the vc app

"victron smart battery sense". it is not a shunt and does not measure current in or out.

Also reports temperature.

 

[mikefitz]

Note anything you connect to the battery is going to consume some power, perhaps a very small amount, but may, over a long period, drain the battery.

This may be what you need,

Amazon.com

And this,

Amazon.com

 

[bolhuijo]

View attachment 224299

I have a couple of these Ancel bluetooth battery monitors. They work great. It stores 30 days of data onboard and downloads the data when you open the app so you can see what was going on last night, the night before, etc.

 

[hardtop]

victron has a voltage only monitor that transmits bluetooth to the vc app

"victron smart battery sense". it is not a shunt and does not measure current in or out.

When I look at their site I don't see that one. Is it discontinued? https://www.victronenergy.com/battery-monitors

 

[hardtop]

Note anything you connect to the battery is going to consume some power, perhaps a very small amount, but may, over a long period, drain the battery.

This may be what you need,

Amazon.com

View attachment 224299
And this,

Amazon.com

View attachment 224300

The bottom one looks great. Something like that with its own battery would be perfect.

 

[KnobCountry]

Smart Battery Sense - Victron Energy

Improve the charging-efficiency and prolong the life of your batteries with the Smart Battery Sense. Find a dealer near you.

www.victronenergy.com

 

[Brucey]

Smart Battery Sense - Victron Energy

Improve the charging-efficiency and prolong the life of your batteries with the Smart Battery Sense. Find a dealer near you.

www.victronenergy.com

Well worth the <$40 if you need remote voltage monitoring and temp, make sure you get the "long range" version if you go in that direction.

 

[featherlite]

I personally use this device. It is accurate. Viewable while driving. There are cheaper devices, but I have no experience with them,

https://www.amazon.com/INNOVA-3721-Battery-Charging-Monitor/dp/B000EVWDU0?th=1

 

[sunshine_eggo]

I personally use this device. It is accurate. Viewable while driving. There are cheaper devices, but I have no experience with them,

https://www.amazon.com/INNOVA-3721-Battery-Charging-Monitor/dp/B000EVWDU0?th=1

View attachment 224398

I buy the ones that have a voltage readout AND USB charge ports...

 

[hardtop]

Smart Battery Sense - Victron Energy

Improve the charging-efficiency and prolong the life of your batteries with the Smart Battery Sense. Find a dealer near you.

www.victronenergy.com

That's a beauty. They probably hide that mofo to upsell lol.

 

[Brucey]

That's a beauty. They probably hide that mofo to upsell lol.

Easily available

Amazon.com

 

[sunshine_eggo]

That's a beauty. They probably hide that mofo to upsell lol.

Nope. Just looking in the wrong category:

Meters & Sensors - Victron Energy

Meters & Sensors - Victron Energy

www.victronenergy.com