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Changes to Recalibrating laptop batteries Introduction

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Introduction
older (and you and wish to get a little more use out of it) or has an inaccurately reported capacity, extend it's life, it may be possible to correct the problem by recalibrating recalibrate the battery. This can also be used to correct an inaccurate battery. [ … ] generally negligible or short term. [ … ] ++ '''Guide notes''' ++=== ++Guide notes++ === * '''''If your battery exceeds 30-40 °C/86-104 °F, REPLACE THE BATTERY!''''' use caution. This caution or consider discharging the battery to ~10%. A full discharge may damage older batteries.''' * '''In most cases, you will see a capacity decrease. This is good and means the information reported to the BMS is accurate.''' * '''Avoid using your laptop while it is charging. The calibration accuracy may be affected.''' * If your laptop does not allow you to use it when the battery drops to a certain percentage (notably HP), percentage, you will need a workaround to drain the battery to 0%. This may vary based on the BIOS type (UEFI or Legacy). * In most cases, you will see a capacity decrease. This is good and means the information reported to the BMS is accurate. * Try to avoid using your laptop while it is charging. This may impact the post calibration accuracy. Legacy). [ … ] '''How to recalibrate the battery''' * Charge the laptop to 100%. until it's at it reports a 0% capacity and shuts down**/***. down*/**. * Immediately recharge the battery. To recalibrate the battery, immediately recharge the battery (uninterrupted). to start recalibration. Do not use the laptop. === Known ++Known BIOS lockouts lockouts++ === **HP '''*HP laptops have a ~15% 15% BIOS lockout and automatically will not turn off and need to be on without being bypassed. '''Immediately Immediately recharge the battery once the laptop is at 0% capacity and shuts down.''' ***Lenovo **Lenovo laptops have a ~7% critical lockout. This '''This only kicks in becomes an issue if the laptop is turned off. off early.'''
older (and you and wish to get a little more use out of it) or has an inaccurately reported capacity, extend it's life, it may be possible to correct the problem by recalibrating recalibrate the battery. This can also be used to correct an inaccurate battery. [ … ] generally negligible or short term. [ … ] ++ '''Guide notes''' ++=== ++Guide notes++ === * '''''If your battery exceeds 30-40 °C/86-104 °F, REPLACE THE BATTERY!''''' use caution. This caution or consider discharging the battery to ~10%. A full discharge may damage older batteries.''' * '''In most cases, you will see a capacity decrease. This is good and means the information reported to the BMS is accurate.''' * '''Avoid using your laptop while it is charging. The calibration accuracy may be affected.''' * If your laptop does not allow you to use it when the battery drops to a certain percentage (notably HP), percentage, you will need a workaround to drain the battery to 0%. This may vary based on the BIOS type (UEFI or Legacy). * In most cases, you will see a capacity decrease. This is good and means the information reported to the BMS is accurate. * Try to avoid using your laptop while it is charging. This may impact the post calibration accuracy. Legacy). [ … ] '''How to recalibrate the battery''' * Charge the laptop to 100%. until it's at it reports a 0% capacity and shuts down**/***. down*/**. * Immediately recharge the battery. To recalibrate the battery, immediately recharge the battery (uninterrupted). to start recalibration. Do not use the laptop. === Known ++Known BIOS lockouts lockouts++ === **HP '''*HP laptops have a ~15% 15% BIOS lockout and automatically will not turn off and need to be on without being bypassed. '''Immediately Immediately recharge the battery once the laptop is at 0% capacity and shuts down.''' ***Lenovo **Lenovo laptops have a ~7% critical lockout. This '''This only kicks in becomes an issue if the laptop is turned off. off early.'''
Summary
of the your battery.
of the your battery.