# Battery System Usages for devices that manage a battery. ## Topics ### Getting the Usages [`kHIDUsage_BS_ACPresent`](/documentation/HIDDriverKit/kHIDUsage_BS_ACPresent) [`kHIDUsage_BS_AbsoluteStateOfCharge`](/documentation/HIDDriverKit/kHIDUsage_BS_AbsoluteStateOfCharge) [`kHIDUsage_BS_AlarmInhibited`](/documentation/HIDDriverKit/kHIDUsage_BS_AlarmInhibited) [`kHIDUsage_BS_AtRate`](/documentation/HIDDriverKit/kHIDUsage_BS_AtRate) [`kHIDUsage_BS_AtRateOK`](/documentation/HIDDriverKit/kHIDUsage_BS_AtRateOK) [`kHIDUsage_BS_AtRateTimeToEmpty`](/documentation/HIDDriverKit/kHIDUsage_BS_AtRateTimeToEmpty) [`kHIDUsage_BS_AtRateTimeToFull`](/documentation/HIDDriverKit/kHIDUsage_BS_AtRateTimeToFull) [`kHIDUsage_BS_AverageCurrent`](/documentation/HIDDriverKit/kHIDUsage_BS_AverageCurrent) [`kHIDUsage_BS_AverageTimeToEmpty`](/documentation/HIDDriverKit/kHIDUsage_BS_AverageTimeToEmpty) [`kHIDUsage_BS_AverageTimeToFull`](/documentation/HIDDriverKit/kHIDUsage_BS_AverageTimeToFull) [`kHIDUsage_BS_BattPackModelLevel`](/documentation/HIDDriverKit/kHIDUsage_BS_BattPackModelLevel) [`kHIDUsage_BS_BatteryInsertion`](/documentation/HIDDriverKit/kHIDUsage_BS_BatteryInsertion) [`kHIDUsage_BS_BatteryPresent`](/documentation/HIDDriverKit/kHIDUsage_BS_BatteryPresent) [`kHIDUsage_BS_BatterySupported`](/documentation/HIDDriverKit/kHIDUsage_BS_BatterySupported) [`kHIDUsage_BS_BelowRemainingCapacityLimit`](/documentation/HIDDriverKit/kHIDUsage_BS_BelowRemainingCapacityLimit) [`kHIDUsage_BS_BroadcastToCharger`](/documentation/HIDDriverKit/kHIDUsage_BS_BroadcastToCharger) [`kHIDUsage_BS_CapacityGranularity1`](/documentation/HIDDriverKit/kHIDUsage_BS_CapacityGranularity1) [`kHIDUsage_BS_CapacityGranularity2`](/documentation/HIDDriverKit/kHIDUsage_BS_CapacityGranularity2) [`kHIDUsage_BS_CapacityMode`](/documentation/HIDDriverKit/kHIDUsage_BS_CapacityMode) [`kHIDUsage_BS_ChargeController`](/documentation/HIDDriverKit/kHIDUsage_BS_ChargeController) [`kHIDUsage_BS_ChargerConnection`](/documentation/HIDDriverKit/kHIDUsage_BS_ChargerConnection) [`kHIDUsage_BS_ChargerSelectorSupport`](/documentation/HIDDriverKit/kHIDUsage_BS_ChargerSelectorSupport) [`kHIDUsage_BS_ChargerSpec`](/documentation/HIDDriverKit/kHIDUsage_BS_ChargerSpec) [`kHIDUsage_BS_Charging`](/documentation/HIDDriverKit/kHIDUsage_BS_Charging) [`kHIDUsage_BS_ChargingIndicator`](/documentation/HIDDriverKit/kHIDUsage_BS_ChargingIndicator) [`kHIDUsage_BS_ConditioningFlag`](/documentation/HIDDriverKit/kHIDUsage_BS_ConditioningFlag) [`kHIDUsage_BS_ConnectionToSMBus`](/documentation/HIDDriverKit/kHIDUsage_BS_ConnectionToSMBus) [`kHIDUsage_BS_CurrentNotRegulated`](/documentation/HIDDriverKit/kHIDUsage_BS_CurrentNotRegulated) [`kHIDUsage_BS_CurrentOutOfRange`](/documentation/HIDDriverKit/kHIDUsage_BS_CurrentOutOfRange) [`kHIDUsage_BS_CycleCount`](/documentation/HIDDriverKit/kHIDUsage_BS_CycleCount) [`kHIDUsage_BS_DesignCapacity`](/documentation/HIDDriverKit/kHIDUsage_BS_DesignCapacity) [`kHIDUsage_BS_Discharging`](/documentation/HIDDriverKit/kHIDUsage_BS_Discharging) [`kHIDUsage_BS_EnablePolling`](/documentation/HIDDriverKit/kHIDUsage_BS_EnablePolling) [`kHIDUsage_BS_FullChargeCapacity`](/documentation/HIDDriverKit/kHIDUsage_BS_FullChargeCapacity) [`kHIDUsage_BS_FullyCharged`](/documentation/HIDDriverKit/kHIDUsage_BS_FullyCharged) [`kHIDUsage_BS_FullyDischarged`](/documentation/HIDDriverKit/kHIDUsage_BS_FullyDischarged) [`kHIDUsage_BS_InhibitCharge`](/documentation/HIDDriverKit/kHIDUsage_BS_InhibitCharge) [`kHIDUsage_BS_InternalChargeController`](/documentation/HIDDriverKit/kHIDUsage_BS_InternalChargeController) [`kHIDUsage_BS_Level2`](/documentation/HIDDriverKit/kHIDUsage_BS_Level2) [`kHIDUsage_BS_Level3`](/documentation/HIDDriverKit/kHIDUsage_BS_Level3) [`kHIDUsage_BS_ManufacturerAccess`](/documentation/HIDDriverKit/kHIDUsage_BS_ManufacturerAccess) [`kHIDUsage_BS_ManufacturerData`](/documentation/HIDDriverKit/kHIDUsage_BS_ManufacturerData) [`kHIDUsage_BS_ManufacturerDate`](/documentation/HIDDriverKit/kHIDUsage_BS_ManufacturerDate) [`kHIDUsage_BS_MasterMode`](/documentation/HIDDriverKit/kHIDUsage_BS_MasterMode) [`kHIDUsage_BS_Maxerror`](/documentation/HIDDriverKit/kHIDUsage_BS_Maxerror) [`kHIDUsage_BS_NeedReplacement`](/documentation/HIDDriverKit/kHIDUsage_BS_NeedReplacement) [`kHIDUsage_BS_OKToUse`](/documentation/HIDDriverKit/kHIDUsage_BS_OKToUse) [`kHIDUsage_BS_OptionalMfgFunction1`](/documentation/HIDDriverKit/kHIDUsage_BS_OptionalMfgFunction1) [`kHIDUsage_BS_OptionalMfgFunction2`](/documentation/HIDDriverKit/kHIDUsage_BS_OptionalMfgFunction2) [`kHIDUsage_BS_OptionalMfgFunction3`](/documentation/HIDDriverKit/kHIDUsage_BS_OptionalMfgFunction3) [`kHIDUsage_BS_OptionalMfgFunction4`](/documentation/HIDDriverKit/kHIDUsage_BS_OptionalMfgFunction4) [`kHIDUsage_BS_OptionalMfgFunction5`](/documentation/HIDDriverKit/kHIDUsage_BS_OptionalMfgFunction5) [`kHIDUsage_BS_OutputConnection`](/documentation/HIDDriverKit/kHIDUsage_BS_OutputConnection) [`kHIDUsage_BS_PowerFail`](/documentation/HIDDriverKit/kHIDUsage_BS_PowerFail) [`kHIDUsage_BS_PrimaryBattery`](/documentation/HIDDriverKit/kHIDUsage_BS_PrimaryBattery) [`kHIDUsage_BS_PrimaryBatterySupport`](/documentation/HIDDriverKit/kHIDUsage_BS_PrimaryBatterySupport) [`kHIDUsage_BS_Rechargable`](/documentation/HIDDriverKit/kHIDUsage_BS_Rechargable) [`kHIDUsage_BS_RelativeStateOfCharge`](/documentation/HIDDriverKit/kHIDUsage_BS_RelativeStateOfCharge) [`kHIDUsage_BS_RemainingCapacity`](/documentation/HIDDriverKit/kHIDUsage_BS_RemainingCapacity) [`kHIDUsage_BS_RemainingCapacityLimit`](/documentation/HIDDriverKit/kHIDUsage_BS_RemainingCapacityLimit) [`kHIDUsage_BS_RemainingTimeLimit`](/documentation/HIDDriverKit/kHIDUsage_BS_RemainingTimeLimit) [`kHIDUsage_BS_RemainingTimeLimitExpired`](/documentation/HIDDriverKit/kHIDUsage_BS_RemainingTimeLimitExpired) [`kHIDUsage_BS_ResetToZero`](/documentation/HIDDriverKit/kHIDUsage_BS_ResetToZero) [`kHIDUsage_BS_RunTimeToEmpty`](/documentation/HIDDriverKit/kHIDUsage_BS_RunTimeToEmpty) [`kHIDUsage_BS_SMBAlarmWarning`](/documentation/HIDDriverKit/kHIDUsage_BS_SMBAlarmWarning) [`kHIDUsage_BS_SMBBatteryMode`](/documentation/HIDDriverKit/kHIDUsage_BS_SMBBatteryMode) [`kHIDUsage_BS_SMBBatteryStatus`](/documentation/HIDDriverKit/kHIDUsage_BS_SMBBatteryStatus) [`kHIDUsage_BS_SMBChargerMode`](/documentation/HIDDriverKit/kHIDUsage_BS_SMBChargerMode) [`kHIDUsage_BS_SMBChargerSpecInfo`](/documentation/HIDDriverKit/kHIDUsage_BS_SMBChargerSpecInfo) [`kHIDUsage_BS_SMBChargerStatus`](/documentation/HIDDriverKit/kHIDUsage_BS_SMBChargerStatus) [`kHIDUsage_BS_SMBErrorCode`](/documentation/HIDDriverKit/kHIDUsage_BS_SMBErrorCode) [`kHIDUsage_BS_SMBSelectorInfo`](/documentation/HIDDriverKit/kHIDUsage_BS_SMBSelectorInfo) [`kHIDUsage_BS_SMBSelectorPresets`](/documentation/HIDDriverKit/kHIDUsage_BS_SMBSelectorPresets) [`kHIDUsage_BS_SMBSelectorState`](/documentation/HIDDriverKit/kHIDUsage_BS_SMBSelectorState) [`kHIDUsage_BS_SelectorRevision`](/documentation/HIDDriverKit/kHIDUsage_BS_SelectorRevision) [`kHIDUsage_BS_SerialNumber`](/documentation/HIDDriverKit/kHIDUsage_BS_SerialNumber) [`kHIDUsage_BS_SpecificationInfo`](/documentation/HIDDriverKit/kHIDUsage_BS_SpecificationInfo) [`kHIDUsage_BS_TerminateCharge`](/documentation/HIDDriverKit/kHIDUsage_BS_TerminateCharge) [`kHIDUsage_BS_TerminateDischarge`](/documentation/HIDDriverKit/kHIDUsage_BS_TerminateDischarge) [`kHIDUsage_BS_ThermistorCold`](/documentation/HIDDriverKit/kHIDUsage_BS_ThermistorCold) [`kHIDUsage_BS_ThermistorHot`](/documentation/HIDDriverKit/kHIDUsage_BS_ThermistorHot) [`kHIDUsage_BS_ThermistorOverRange`](/documentation/HIDDriverKit/kHIDUsage_BS_ThermistorOverRange) [`kHIDUsage_BS_ThermistorUnderRange`](/documentation/HIDDriverKit/kHIDUsage_BS_ThermistorUnderRange) [`kHIDUsage_BS_Undefined`](/documentation/HIDDriverKit/kHIDUsage_BS_Undefined) [`kHIDUsage_BS_Usenext`](/documentation/HIDDriverKit/kHIDUsage_BS_Usenext) [`kHIDUsage_BS_VoltageNotRegulated`](/documentation/HIDDriverKit/kHIDUsage_BS_VoltageNotRegulated) [`kHIDUsage_BS_VoltageOutOfRange`](/documentation/HIDDriverKit/kHIDUsage_BS_VoltageOutOfRange) [`kHIDUsage_BS_WarningCapacityLimit`](/documentation/HIDDriverKit/kHIDUsage_BS_WarningCapacityLimit) [`kHIDUsage_BS_iDeviceChemistry`](/documentation/HIDDriverKit/kHIDUsage_BS_iDeviceChemistry) [`kHIDUsage_BS_iDevicename`](/documentation/HIDDriverKit/kHIDUsage_BS_iDevicename) [`kHIDUsage_BS_iManufacturerName`](/documentation/HIDDriverKit/kHIDUsage_BS_iManufacturerName) [`kHIDUsage_BS_iOEMInformation`](/documentation/HIDDriverKit/kHIDUsage_BS_iOEMInformation) --- Copyright © 2026 Apple Inc. 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