SLUUCH2 March 2021 BQ40Z50-R2
The MAC Seal Device() command instructs the device to limit access to the SBS functions and data flash space, and sets the [SEC1][SEC0] flags. In SEALED mode, standard SBS functions have access (per the Smart Battery Data Specification). Most of the extended SBS functions and data flash are not accessible. Refer to Section 17 where each command has documented the accessibility information. Once in SEALED mode, the gauge can never permanently return to UNSEALED or FULL ACCESS modes.