Fuel gauge BQ27441 breakout

SKU: 333065
42 items available

42 in stock

Product Description

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 easyC 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.

Product features

Key features

  • For 1S batteries (4.2V)
  • Communication: I2C
  • Measures: voltage, state of charge, capacity
  • Dimensions: 38 x 22 mm / 1.5 x 0.9 inch

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