Hello GMarco_Utech12,
You should set a value(your acc_us, your acc_bwp, your acc_odr) to 0x40 for your application. By 0x40 register default value, acc_us was disable. acc_us should be set to 1 for low power mode.
Please refer register configuration from data sheet:
If you haven't used magnetomenter and gyroscope, you only needed to set them to suspend. If you want to use magnetomenter and gyroscope, you could set them to minimum current consumption according register settong from BMI160 data sheet.
... View more