Apple Inc.
TECHNIQUES FOR SOFTWARE IMPLEMENTED GAS-GAUGING

Abstract:

Embodiments of the present disclosure provide systems, methods, and computer-readable storage devices for determining a state of charge of a battery. A temperature, electrical current value, and voltage of the battery of a computing device may be obtained. A charging tier of a multi-tiered charging scheme may be identified based at least in part on the temperature and the voltage. An electrical current rate to be applied to the battery may be obtained using the temperature, the voltage of the battery, and the identified charging tier. A mapping may be obtained based at least in part on whether the battery is being charged during a constant voltage phase or a constant electrical current phase of the charging tier. A state of charge of the battery may be determined using the mapping and either the voltage or the electrical current value. The state of charge may be presented at an output device.