SLUUBD4A April 2016 – November 2022 BQ27220
The BQ27220 device can be configured to compensate for a constant load (as from battery electronics) present in the battery pack at all times. The BQ27220 device applies the compensation continuously when the charge or discharge is below the digital filter. The BQ27220 device applies the compensation in addition to self-discharge. The compensation occurs at a rate determined by the value stored in Electronics Load. The compensation range is 0 μA–765 μA in steps of approximately 3 µA.
The amount of internal battery electronics load estimate in μA, BEL, is stored as follows:
Electronics Load = BEL/3