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The MAX17048 is a low-power battery fuel gauge module designed for single-cell lithium-ion and lithium-polymer batteries. It provides accurate real-time battery voltage and state-of-charge (SoC) estimation without requiring a shunt resistor. With an I2C interface and STEMMA QT / Qwiic compatibility, it is easy to integrate into battery-powered embedded systems.
The MAX17048 is a low-power battery fuel gauge module designed for single-cell lithium-ion and lithium-polymer batteries. It provides accurate real-time battery voltage and state-of-charge (SoC) estimation without requiring a shunt resistor. With an I2C interface and STEMMA QT / Qwiic compatibility, it is easy to integrate into battery-powered embedded systems.
Single-cell lithium battery monitoring
State-of-charge (SoC) estimation without shunt resistor
Real-time battery voltage measurement
Ultra-low power consumption
Programmable low-battery alert output
I2C communication interface
STEMMA QT / Qwiic plug-and-play support
IC Model: MAX17048
Battery Type Supported:
Single-cell Li-ion / LiPo
Battery Voltage Range: 2.5V to 4.5V
State-of-Charge Accuracy: ±5 percent (typical)
Voltage Measurement Accuracy: ±7.5 mV
Operating Current: Approximately 7 µA
Communication Interface: I2C
Default I2C Address: 0x36
Logic Level Compatibility: 3.3V or 5V
Alert Output: ALRT pin (requires external pull-up)
Interfaces:
STEMMA QT / Qwiic JST connector
4-pin header (GND, VCC, SDA, SCL)
Country of Origin: Made in China
Battery-powered IoT devices
Wearable electronics
Portable measurement instruments
Power monitoring for embedded systems
Smart sensors and wireless devices
Educational and prototyping projects
VCC: 3.3V–5V power input
GND: Ground
SDA: I2C data line
SCL: I2C clock line
BAT: Battery positive terminal (2.5V–4.5V)
ALRT: Low battery alert output
1 x MAX17048 battery fuel gauge module (STEMMA QT / Qwiic)
1 x Single-row pin header (not soldered)
Designed for single-cell lithium batteries only
ALRT pin requires an external pull-up resistor
QT cable not included
Ensure correct battery polarity before connection
The MAX17048 battery fuel gauge module offers a compact, low-power, and accurate solution for monitoring lithium battery voltage and charge level. With STEMMA QT / Qwiic compatibility and I2C communication, it is ideal for modern battery-powered electronics and embedded applications.
Specific References
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Reference: RBD-0368
The MAX17048 is a low-power battery fuel gauge module designed for single-cell lithium-ion and lithium-polymer batteries. It provides accurate real-time battery voltage and state-of-charge (SoC) estimation without requiring a shunt resistor. With an I2C interface and STEMMA QT / Qwiic compatibility, it is easy to integrate into battery-powered embedded systems.
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