Emus BMS Cell Modules are the single cell controllers that measure cell voltage and provide means of controlled dissipative balancing. Each Cell Module can also measure its own temperature, and is equipped with a special serial interface for communication with the main controller.

The Small model is optimized for lower capacity cells and can be used in application with space constraints or on  non-prismatic cells.


Shunt characteristics:
 – RTOT= 4.1Ohm;
 – PMAX= 2W;
Max balancing current: 0.7A (limited by PMAX);
Operating voltage: 2.0V – 4.55V;
Operating temperature: -40°C to +80°C;
Voltage measurement accuracy: ±10mV;
External temperature sensor option;
Temperature measurement accuracy: ±5°C;
Dimensions: 33.8x12x2.8 mm;
Wire length: 100mm;
Mounting hole: M8.

Ordering Information:

Please use part numbers below for ordering the products

Part number Description Package Contents


Small cell module

G1 Cell Module Small Type – 1pcs.

Thermistor not included (NTC 100kΩ)


CM021A – NW

Small cell module; no wires

G1 Cell Module Small Type without wires – 1pcs.


G1 BMS User Manual 2.9

2022-02-15 18:40:23

G1 BMS system user manual which documents the whole BMS system components, connectivity, configuration, monitoring, troubleshooting and much more.

Download Release Notes


G1 Cell Module - Small type data sheet CM021A

2021-04-30 16:42:07


3D Design Files:

CM021A STEP file CM021A

2021-06-09 13:48:22


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