Battery state of charge and voltage are now displayed on the OLED

By Julian

Youtuber, shed dweller, solar charge controller aficionado

12 thoughts on “Max17043 lipo fuel gauge connects to arduino via i2c #2”
  1. Avataaar/Circle Created with python_avatars riccardo fedeli says:

    WHAT VOLTAGE CORRESPONDS TO A SOC OF 0% ?

  2. Avataaar/Circle Created with python_avatars Victor Reppeto says:

    I hope you see this. This unit is less than $2 on aliexpress. I would like to use it to build a 24 cell analyzer station for grading used lithium ion cells. What is the current limit of the shunt? Would you suggest an alternate strategy that might be just as inexpensive?

  3. Avataaar/Circle Created with python_avatars pulesjet says:

    Wonder if there would be a way to Cycle the readings for individual batteries (Cells) on a 48v 13S E bike Battery? Could be handy to see if the battery needs to be balanced.

  4. Avataaar/Circle Created with python_avatars DIY IN THE GHETTO says:

    Hello Julian over all what do you think of the fuel Gauge? Because i have a few on the way i need for a project and Want to get more input on it? I know this is a older video so i was just wondering.

  5. Avataaar/Circle Created with python_avatars Sasha JU says:

    Hey. Is there IC better than ina219? Accuracy…

  6. Avataaar/Circle Created with python_avatars Hola! Kevin Levano says:

    Hey julian please help or anyone..

    I keep getting dtostrf was not declared in this scope
    anyone know how i can fix this
    please!!!! :'(

  7. Avataaar/Circle Created with python_avatars underwaterjunkie says:

    Hi Julian, I'd like to try this with my ESP8266 that requires 3.3v from the TP4056, can I use a AM1117 regulator on the out of the TP4056 still get accurate readings?

  8. Avataaar/Circle Created with python_avatars elektromanyetix says:

    Hello. Can i using with 18650 litium battery ? (MAX17043)

  9. Avataaar/Circle Created with python_avatars Tim D says:

    @Julian Ilett I did the same mistake as you did by connecting the MAX17043 directly to the lipo. So I had to change it over so that its in the protection circuit. But I have a problem. I pulled the solder pads off the SDA and SCL connections. Do you have any idea where the traces go so I can solder directly to maybe a transistor?

  10. Avataaar/Circle Created with python_avatars Hola! JustBanter says:

    is there a Library for the 18650 Li-ion cell as I see some people are getting false readings with this Lipo designated Library? (i.e. gives a reading of 5v and state of charge 256%)

  11. Avataaar/Circle Created with python_avatars Zhainius says:

    Did anyone ever figure out the 5v and state of charge 256% issue? I'm having the same problem at the moment :S

  12. Avataaar/Circle Created with python_avatars Hakkı Eser says:

    5v %256 . print value 🙁 what is problem ?

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