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Grove - Coulomb Counter 3.3V to 5V (LTC2941)

Grove - Coulomb Counter 3.3V to 5V (LTC2941)

In stock
  • 10+: $7.60


The coulomb (symbol: C) is the International System of Units (SI) unit of electric charge.It is the charge (symbol: Q or q) transported by a constant current of one ampere in one second:1C=1A•1s. A Coulomb Counter is a device to measure the current that your devices or sensors is using.


The Grove - Coulomb Counter 3.3V to 5V (LTC2941) is based on LTC2941, its operating range is perfectly suited for single-cell Li-Ion batteries. A precision coulomb counter integrates current through a sense resistor between the battery’s positive terminal and the load or charger. This module measures the amount of amp-hours have been used, if you use a fully charged battery, you can test the amount of battery you have used, the remaining percentage, just like the remaining battery shown in your phone. Vice versa, if you are charging a battery, you can use this module to monitor the charging process.


We've Released the Grove Selection Guide and hope to help you find the Grove suit you best. 


  • Indicates Accumulated Battery Charge and Discharge

  • High Accuracy Analog Integration

  • 1% Charge Accuracy

  • SMBus/I2C Interface

Typical Applications

  • Low Power Handheld Products

  • Cellular Phones

  • MP3 Player

  • Cameras

  • GPS

Pin Out

Technical details

Dimensions 40mm x20mm x12mm
Weight G.W 9.7g
Battery Exclude

Part List

Grove - Coulomb Counter 3.3V to 5V (LTC2941) 1
Grove Cable 1


HSCODE 9030900090
USHSCODE 8473301140
UPC 841454121633
EUHSCODE 8473302000
EU DoC 1
RoHS 1
UK DoC 1



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