| Level | Battery Information in BIOS | BHM Meter | Definition |
|---|---|---|---|
| Level 1 | Excellent | Normal | This state is measured by battery health being greater than or equal to 65%. "Normal" batteries in this state may have up to a 35%-reduced operational time even after the battery is 100% charged. |
| Level 2 | Good | Caution State I | This occurs when battery health is less than 65% but greater than 50%. "Reduced Life" of up to 49% loss in operational time can occur even after the battery is 100% charged. |
| Level 3 | Fair | Caution State II | This happens when battery health is less than or equal to 50% but greater than 25%. "End of Usable Life" of 50% or more loss in operational time can occur even after the battery is 100% charged. |
| Level 4 | Poor | Replacement State I Replacement State II |
This occurs when battery health is less than or equal to 25%. "Insufficient Power" is typically the error message displayed. This happens when a problem with the battery occurs. "Permanent Failure" is the error message displayed. |