The M5Stack Base Dual 16340 provides reliable battery power for M5Stack controllers with dual 16340 cell support, built-in power monitoring, and Grove expansion for portable and battery-powered projects.
The M5Stack Base Dual 16340 is a compact battery base module for M5Stack Core controllers that supports two 16340 rechargeable cells in parallel to provide stable battery power to the main system.
The module integrates power-path management, power-switch control, overcurrent and reverse-polarity protection, and battery status monitoring, helping to monitor voltage, current, and power in real time for power-management and energy-analysis tasks.
Inside the module is an INA226 current and voltage monitoring chip that communicates with the host through an I2C interface. It also provides two Grove expansion interfaces, making it easy to connect various sensors and peripheral modules for battery expansion of M5Stack devices or standalone embedded applications.
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Features
Battery base module for M5Stack controllers
Supports two 16340 rechargeable batteries
Power supply can be turned on/off by switch
Built-in overcurrent and reverse-polarity protection for improved reliability
Integrated INA226 current/voltage monitor chip for real-time battery state monitoring
Two Grove expansion interfaces for flexible sensor and peripheral connections
Specifications
Power Monitor Chip
INA226
Battery Protection IC
DW01A
Battery Type
16340 rechargeable lithium battery
Battery Capacity
2 x 700mAh
Battery Electrical Spec
Rated Capacity: 700mAh Rated Voltage: DC 3.7V Charge Cut-off Voltage: DC 4.2±0.03V (Temperature 0℃~+45℃) Standard Charge Current: 0.2C (Temperature 0℃~+45℃) Standard Discharge Current: 0.2C (Temperature -20℃~+60℃) Max Discharge Current: 3.0C (Discharge cut-off voltage DC 2.75V)
Power Control
Slide switch
Grove Interface Spec
2 x HY2.0-4P
Standby Power
(Power switch on, no host connected) No battery: DC 4.2V@1.10mA With battery: DC 4.2V@33.41mA
