|
| 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.]] |
|
| '''''Important: Battery recalibration does not save worn out batteries.''''' This will correct the reported capacity and may extend it’s runtime temporarily, but will not recover the pack. |
|
| === ++Guide notes++ === |
| * '''''If your battery exceeds 30-40 °C (86-104 °F), REPLACE THE BATTERY!''''' |
| * '''''If your battery is older, consider a ~10% discharge. These batteries may be damaged from a full discharge.''''' |
| * '''''In most cases, you will see a capacity decrease. This is good, not bad.''''' |
| * '''''Avoid using your laptop while it is charging. This may affect calibration accuracy.''''' |
| * If your laptop does not allow you to use it when the battery drops to a certain percentage, you will need to use a workaround. '''''Workarounds for UEFI/Legacy BIOSes are provided.''''' |
| * '''''If the capacity is inconsistent, the battery should be replaced.''''' |
| === ++How to recalibrate the battery++ === |
| * Charge the laptop to 100%. |
| * Use the laptop until it reports a 0% capacity and shuts down |
| ** See '''''BIOS lockouts (known)''''' for HP and Lenovo laptops. |
| * Immediately recharge the battery to recalibrate. Do not use the laptop. |
| === ++BIOS lockouts (known)++ === |
| * '''''HP laptops have a 15% BIOS lockout and need to be bypassed''''' to do a full discharge. Immediately charge the battery once the laptop shuts off. |
| ** '''''This always happens with HP laptops unless it is bypassed.''''' |
| * Some Lenovo laptops have a 7% critical capacity lockout (0190). |
| ** '''''This only occurs if the laptop shuts off early.''''' |