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Fuel Gauge BQ27441 Breakout
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Fuel gauge is a special type of accessory for lithium batteries that very precisely measures the state of the battery. This includes current voltage [mV], state of charge [%] and probably most interestingly: remaining capacity in the battery [mAh]. It is used with 1S batteries, and provides all this information via the I2C interface.
On our board you can find qwiic connectors which allow I2C communication with microcontroller. Also, there is a JST input for any pouch battery you can find in our offer, as well as quick connect terminal connector for input if your source doesn't have JST connector.
- For 1S batteries (4.2V)
- Communication: I2C
- Measures: voltage, state of charge, capacity
- Dimensions: 38 x 22 mm / 1.5 x 0.9 inch
Start Here
1
Connect
Wire up to your microcontroller via I²C.
2
Install the library
Add the Soldered library for your language (below).
3
Run an example
Open the get-started example and read your first value.
ArduinoC++
Pinout
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