SLUUBU0A June 2018 – July 2022 BQ27Z561
| Pin Name | Description |
|---|---|
| SYS+ | System positive terminal |
| SYS– | System negative terminal |
| CELL+ | Battery positive terminal |
| CELL– | Battery negative terminal |
| SDA | External I2C communication data line |
| SCL | External I2C communication clock line |
| VSS | Device ground |
| INT | General purpose output |
| PULS | General purpose output |