Battery Level reading

Discussion in 'General Electronics Chat' started by Marinescu Mihai, Sep 29, 2016.

  1. Marinescu Mihai

    Thread Starter New Member

    Sep 29, 2016
    Hello all,

    I have a electric kick scooter and I want to build a "dock station" in my car for it, also I want to read the battery level and transmit it wireless to my smartphone.

    The kick scooter model:

    The battery is LIPO 37.4V – 3.5A.

    The kick scooter has a display on which the level of battery is displayed.

    The question is:

    Do you have any idea how can I read the battery level, then transmit the value to a Arduino and then transmit the value to my pc or smartphone wireless?

    Thank you
  2. nerdegutta


    Dec 15, 2009
    Hi, and welcome to AAC!

    My first thoughts:
    You can use the Arduinos ADC function to read the battery voltage. This value can be sent to your phone with a GSM module, a 433MHz RF module (or equivalent) or I guess you can use an ESP 8266.

    New Member

    Jul 13, 2015
    can i asked why you needed to transmit it to your smart phone.
    how important to you to monitor this level.since you can read it directly to your scooter without problem.
  4. Marinescu Mihai

    Thread Starter New Member

    Sep 29, 2016
    nerdegutta: Nice to meet you, thank you for your advice

    JUNELER: My dock station will be mounted in the trunk and I want to know the level of battery when the kick scooter charging and I can not see the screen. For me it is important to know this information.