Introduction and advice on solar charged go kart

[NVS]

Had our race today, finished 4th and not unhappy about it.

Did have a few problems that we can work out with more time and testing but I have a question about battery capacity monitors. The Renogy SCC battery gauge is useless as it bases its SOC off of voltage and as soon as the kart stops and begins to charge with no draw on battery, it reads 100%.

Bought a smaller shunt based ammeter that is supposed to give us SOC reading also but it only gives us info while kart is running. I would like to find something that will give us real time SOC reading while it is charging. Someone has to make this

I bought the AiLi Battery Monitor from Amazon for $44

https://a.co/d/d9EM3r0

But you do have to calibrate the capacity by draining the battery 100% then fully recharge it. You also inter the calculated battery capacity.

The Renogy you have may have to be calibrated the same way.

 

[NVS]

Congratulations on 4th place!!!

 

[NVS]

You can also buy the Victron smart shunt for $130 it will give you usage graphs and more.

https://a.co/d/bZVn1vM

 

[florida cracker]

I bought the AiLi Battery Monitor from Amazon for $44

https://a.co/d/d9EM3r0

But you do have to calibrate the capacity by draining the battery 100% then fully recharge it. You also inter the calculated battery capacity.

The Renogy you have may have to be calibrated the same way.

That's pretty much what we have, same exact monitor with different name on it. I guess we'll have to play with it a bit more to use all of its features.

Congratulations on 4th place!!!

Thanks, kids had fun with it

 

[florida cracker]

You can also buy the Victron smart shunt for $130 it will give you usage graphs and more.

https://a.co/d/bZVn1vM

Would this give us real time SOC while battery is recharging??

If so, that sounds like our monitor

 

[NVS]

Would this give us real time SOC while battery is recharging??

If so, that sounds like our monitor

I personally don't have one. So you'll have to research it. From what I've seen on the RV forums people like it. It's connects via Bluetooth to your phone.

 

[florida cracker]

I currently have the shunt wired between the speed controller and the motor on this. Would it be better to place it between the battery and a bus bar connecting SCC and Speed controller to batteries??