HP ENVY - 13-ah0003na not charging past 80%

[bluetoaster]

Hi,

in the past couple of weeks my laptop has stopped charging over 80% and stops charging at around 74%-79% charged. A HP PC Hardware Diagnostics component test says the battery passed - test log is below. Multiple full discharge and charge cycles haven't fixed the issue.

The only thing in the test log that I see could be related is Primary_ChargeControl: Failed

What I have done recently is update the BIOS and I wonder if the BIOS update has added battery optimisation functionality which is preventing charging over 80%. I don't see any option in the BIOS relating to this though.

TestVersion = 1.17.5.0

TestId = a088469f-b159-4d7e-b4f9-0f1ed77a95af

Instance = 1

StartTime = 2021-10-11T14:40:05

ExecutionDuration = 00:00:32

Result = ExecutionPassed

PassID = 20977-53610-94658

==================================================

BatteryCheckResult: 11

DevicesSupported: 1

DeviceCount: 1

Primary_ACPowerOn: True

Primary_ACAdapterOK: True

Primary_ACAdapterStatus: False

Primary_TestResult: OK

Primary_DesignCapacity: 53 WHr

Primary_FullChargeCapacity: 48 WHr

Primary_RemainingCapacity: 37 WHr

Primary_MaxError: 1

Primary_CycleCount: 85

Primary_Temperature: 33 deg C

Primary_Voltage: 16461 mV

Primary_Current: 0 mA

Primary_DesignVoltage: 15400 mV

Primary_Status: 192

Primary_SerialNumber: 02310 09/28/2018

Primary_ManufacturerName: 333-2B-49-A

Primary_BatteryCTNumber: 6GXCV03TZBD6TP

Primary_Warranty: 3

Primary_CalibrationType: 3

Primary_ChargeControl: Failed

Primary_TempCharge: True

Primary_ChargeTest: False

Primary_ChargeCapacity: 91

Primary_TempAlarm: False

Primary_DeepDischarge: False

Primary_FullCharge: False

Primary_FullChargeStatus: False

Primary_BatteryCharge: False

Primary_DesignCycleCount: 1000