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Introduction |
If your laptop battery is inaccurately reporting its capacity or is older, it may be possible to recalibrate the battery to extend its life.
[ … ]
For help understanding what calibration is, why it’s important, and how to calibrate batteries in other types of devices, check out the [[Battery Calibration|Battery Calibration Wiki.]]
[ … ]
recalibration will does not save a worn out battery.''''' batteries.''''' This will correct the reported capacity and may extend it’s life for a short period of time, runtime temporarily, but will not recover the pack. '''''If there are any improvements, these are typically short-term.''''' pack.
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=== ++Guide notes++ ===
* '''''If your battery exceeds 30-40 °C (86-104 °F), REPLACE THE BATTERY!'''''
your pack battery is older, consider a discharge to ~10%. ~10% discharge. These batteries may be damaged with from a full discharge.'''''
* '''''In most cases, you will see a capacity decrease. This is good since the capacity reported by the BMS is accurate.''''' good, not bad.'''''
* '''''Avoid using your laptop while it is charging. This may affect calibration accuracy.'''''
workaround. This varies based on the BIOS type (UEFI or Legacy). '''''Workarounds for UEFI/Legacy BIOSes are provided.'''''
=== ++How to recalibrate the battery++ ===
* Charge the laptop to 100%.
* Use the laptop until it reports a 0% capacity and shuts down
See '''BIOS '''''BIOS lockouts (known)''' (known)''''' for bypasses if you use an HP or and Lenovo laptop. laptops.
* Immediately recharge the battery to start recalibration. recalibrate. Do not use the laptop.
=== ++BIOS lockouts (known)++ ===
and will need to be bypassed bypassed''''' to do a full discharge. Immediately charge the battery once the battery reaches 0% and the laptop shuts off.''''' off.
** '''''This always happens with HP laptops unless it is bypassed.'''''
* Some Lenovo laptops have a ~7% 7% critical low capacity error lockout (0190).
** '''''This only comes up occurs if the laptop is turned shuts off before the battery reached 0% and dies.''''' early.'''''
If your laptop battery is inaccurately reporting its capacity or is older, it may be possible to recalibrate the battery to extend its life.
[ … ]
For help understanding what calibration is, why it’s important, and how to calibrate batteries in other types of devices, check out the [[Battery Calibration|Battery Calibration Wiki.]]
[ … ]
recalibration will does not save a worn out battery.''''' batteries.''''' This will correct the reported capacity and may extend it’s life for a short period of time, runtime temporarily, but will not recover the pack. '''''If there are any improvements, these are typically short-term.''''' pack.
[ … ]
=== ++Guide notes++ ===
* '''''If your battery exceeds 30-40 °C (86-104 °F), REPLACE THE BATTERY!'''''
your pack battery is older, consider a discharge to ~10%. ~10% discharge. These batteries may be damaged with from a full discharge.'''''
* '''''In most cases, you will see a capacity decrease. This is good since the capacity reported by the BMS is accurate.''''' good, not bad.'''''
* '''''Avoid using your laptop while it is charging. This may affect calibration accuracy.'''''
workaround. This varies based on the BIOS type (UEFI or Legacy). '''''Workarounds for UEFI/Legacy BIOSes are provided.'''''
=== ++How to recalibrate the battery++ ===
* Charge the laptop to 100%.
* Use the laptop until it reports a 0% capacity and shuts down
See '''BIOS '''''BIOS lockouts (known)''' (known)''''' for bypasses if you use an HP or and Lenovo laptop. laptops.
* Immediately recharge the battery to start recalibration. recalibrate. Do not use the laptop.
=== ++BIOS lockouts (known)++ ===
and will need to be bypassed bypassed''''' to do a full discharge. Immediately charge the battery once the battery reaches 0% and the laptop shuts off.''''' off.
** '''''This always happens with HP laptops unless it is bypassed.'''''
* Some Lenovo laptops have a ~7% 7% critical low capacity error lockout (0190).
** '''''This only comes up occurs if the laptop is turned shuts off before the battery reached 0% and dies.''''' early.'''''
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