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


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Approx Restocking Date: 25 to 30 Days
SKU: 1135207
  1. Operating Voltage 2.7V to 5.5V
  2. Operating Temperature 0℃ to +70℃
  3. Accuracy ±2ppm from 0°C to +40°C
  4. Interface I2C
  5. I2C Address 0x64



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Category: Hall Sensor

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 are 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 number of amp-hours has 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 changing a battery, you can use this module to monitor the charging process.

Getting started with SeeedStudio Grove Coulomb Counter 3.3V to 5V (LTC2941)


  1. Indicates Accumulated Battery Charge and Discharge
  2. High Accuracy Analog Integration
  3. 1% Charge Accuracy
  4. SMBus/I2C Interface


  1. Low Power Handheld Products
  2. Cellular Phones
  3. MP3 Player
  4. Cameras
  5. GPS

Useful Link:


Package Includes :

1 x SeeedStudio Grove Coulomb Counter 3.3V to 5V (LTC2941)
1 x JST cable

SKU: 1135207 Category:
Operating Voltage (V)

2.7V to 5.5V

Operating Temperature (°C)

0℃ to +70℃

Accuracy ±2ppm from

0°C to +40°C



I2C Address


Shipping Weight 0.009 kg
Shipping Dimensions 13 × 9 × 1 cm
6 Months Warranty

This item is covered with a supplier warranty of 6 months from the time of delivery against manufacturing defects only. This is a quality product from the original manufacturer. Only manufacturing defects are covered under this warranty. Replacement will be done against manufacturing defects.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China