Specifications:

Active Protections:
Overcharge protection: 4.3V
Overdischarge protection: 2.3V
Overcurrent protection by PCM: 2A
Sensors
NTC Thermistor (10K Ohm) included
Cell Safety Features
Short circuit: no fire, no explosion, but damaged.
Overcharge to 4.8V: no fire, no explosion, but damaged.
Pin Outs
Red: Positive
Yellow: Thermal sensor (connected to ground through a 10K Ohm thermistor)
Black: Negative (ground)
Voltage
Rated: 3.7V
Operating Range: 4.2V~3.0V
Conventions
First digit after EDC indicates the number of cells in serial.
Second hexadecimal letter indicates options
represented by 4 bits weighted 8, 4, 2, 1
8: if PTC presents
4: if ID register presents
2: if NTC thermistor presents
1: if connector presents
So, B (1011) indicates PTC, NTC, and Connector are selected.
Similarly, 9 (1001) indicates PTC and Connector are selected