Adafruit LC709203F LiPoly / LiIon Fuel Gauge and Battery Monitor

Adafruit, MIT

Low cost Lithium Polymer batteries have revolutionized electronics - they're thin, they're light, they can be regulated down to 3.3V and they're easy to charge.

VIN
Logic-level supply pin. Adafruit Learn states the chip can safely run from 3-5VDC and VIN should match the microcontroller logic level.
Type · powerVoltage · 3-5VDC logic supply
GND
Common ground for power and logic.
Type · groundVoltage · 0V
SCL
I2C clock line. Adafruit Learn notes a 10K pull-up on this pin.
Type · i2c
SDA / SDI
I2C data line. The Learn page labels this board pin SDI and says it is SDA, with a 10K pull-up.
Type · i2c
STEMMA QT
STEMMA QT / Qwiic connector carrying the board I2C connection to compatible boards and accessories.
Type · connector
JST battery ports

Start wiring

I2C · SPI · 3-5VDC logic supply · 0V

Confirm the data interface matches your host board.

Module pins: VIN, JST battery ports, GND, SCL, SDA / SDI. Schematik maps them to your board in the app.

Related groups

4 groups

Power

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Batteries

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Power · Batteries · 21 parts

Connectors

Sort passive connector adapters from Qwiic boards, LCD modules and microSD card adapters before assuming anything with the right plug will substitute safely.

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Displays

Character LCDs, SPI TFTs, e-paper modules and larger capacitive-touch TFT panels solve different display jobs. Treat display class, interface, controller, resolution, touch, refresh behaviour, storage, voltage and mounting as separate swap checks.

Displays · TFT & LCD displays · 35 parts