Gravity: I2C 3.7V Li Battery Fuel Gauge

2 reviews
Price:
Sale price A$18.85   Inc. GST
SKU:
DF-DFR0563
1 unit Ships in 24 hours
215 units Ships in 7 to 10 days
3.7V lithium batteries are commonly used in many projects. However, the remaining power and voltage of the lithium battery are highly nonlinear. We can only roughly judge whether the battery is full or almost empty according to its voltage. The Gravity I2C 3.7V Lithium Battery Fuel Gauge employs Gravity I2C interface, ultra-low operating current, and real-time tracking of the relative state of charge (SOC) of the battery through Maxim's patented algorithm, eliminating the need for full-to-empty relearning and offset accumulation errors. Plug and play to accurately measure the voltage and remaining power of the battery. The module also features as a low battery power alert interrupt function. When the battery power falls below specified threshold, the ALR pin generates a falling pulse to trigger the external interrupt of the controller.

You will find it a great help to estimate the battery life by learning the power consumption of the system with this module. In the solar powered projects, it helps to record the status of the battery power change in a day or even months, which benefits to understand the power balance of charge and discharge of the solar system.



Gravity: 3.7V Li Battery Fuel Gauge Connection Diagram (Arduino UNO)



Gravity: 3.7V Li Battery Fuel Gauge Connection Diagram (Raspberry Pi 3B)

Features:

  • Maxim's Patented Algorithm, accurate voltage and remaining power readings of lithium battery
  • No Full-to-Empty Relearning Process, No Offset Accumulation Errors, Plug and Play
  • Wide Input Voltage, Compatible with 3.3V and 5V Controllers
  • Programmable Low Power Alert Interrupt Threshold
  • Battery Reverse Connection Protection
  • Applications:

  • Solar Weather Station, Street Light
  • Lithium Battery Charger
  • Robotics
  • Specification:

  • Input Voltage (VCC): 3.3V~6.0V
  • Battery Input Voltage (BAT IN): 2.5V~4.2V
  • Battery Type(BAT IN): 3.7V Li-polymer/Li-ion battery
  • Operating Current: 50 uA
  • Interface: Gravity I2C (logic level: 0-3.3V)
  • Dimension: 22.0*30.0mm/0.86*1.18 inches
  • Documents:

  • Product wiki
  • More Documents
  • Product Includes:

  • Gravity: I2C 3.7V Li Battery Fuel Gaugex1
  • XH2.54-2P Headerx1
  • Gravity-4P I2C/ UART Sensor Wirex1
  • Customer Reviews
    5.0 Based on 2 Reviews
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    A
    06/11/2023
    Anonymous
    Australia Australia
    I recommend this product
    • How do you rate our services? Awesome

    Worked like a charm

    Allowed me to monitor battery voltage for low voltage irrigation valve

    S
    16/09/2022
    Steve
    Australia Australia
    • How do you rate our services? Awesome

    The fuel gauge just works

    I had tried a cheapie version of the MAX17043 fuel gauge and wasted a lot of time trying to get a reading. I should have gone to the DFRobot version and saved my time.I hooked this up via ESPHome and it worked straight away with the board and code that had not worked with the cheap version. So bottom line - I am happy.

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