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Introduction |
| If your laptop battery is inaccurately reporting it's capacity or it is older, it may be possible to recalibrate the battery to extend it's life. | | '''Read me:''' Battery recalibration will not save worn out batteries.''' The capacity This will correct the reported by the BMS will be correctcapacity, but the wear will not be removed.recover the pack.These batteries need to be replaced '''These batteries will not gain long term In general,cnoticeableapacity'' improvements are short term.'.
el> | | === ++Guide notes++ === | | * '''''If your battery exceeds 30-40 °C (86-104 °F), REPLACE THE BATTERY!''''' | * '''If your pack is older, consider discharging the batterya discharge to ~10%. AThese may be damaged with a full discharge may damage these batteries.''' | | * '''In most cases, you will see a capacity decrease. This is good since the capacity reported by the BMS is accurate.''' | * '''Avoid using your laptop while it is charging. TheThis 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 to drain the battery to 0%. This may vary based on the BIOS (UEFI or Legacy). | | '''=== ++How to recalibrate the battery'''++ === | | * Charge the laptop to 100%. | | * Use the laptop until it reports a 0% capacity and shuts down*/**. | | * Immediately recharge the battery to start recalibration. Do not use the laptop. | === ++Known BIOS lockouts (known)++ === | | '''*HP laptops have a 15% BIOS lockout and will need to be bypassed to turn on. Immediately charge the battery once the battery reaches 0% and shuts off.''' | **Lenovo laptops have a ~7% critical lockout. '''This only becomes an issuecomes up if the laptop is turned off earlybefore 0% charge.''' |
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