reporting it's its capacity or it is older, it may be possible to recalibrate the battery to extend it's its life. [ … ] gain long term long-term capacity'''. === ++Guide notes++ === * '''''If your battery exceeds 30-40 °C (86-104 °F), REPLACE THE BATTERY!''''' * '''If your pack is older, consider a discharge to ~10%. These may be damaged with a full discharge.''' * '''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. 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. 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. === ++BIOS lockouts (known)++ === '''*HP* '''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 ** Lenovo laptops have a ~7% critical lockout. low capacity error (0190). '''This only comes up if the laptop is turned off before 0% charge.'''