Specifications

28 - PowerBook G4 (17-inch DLSD/1.67/1.5/1.33GHz) Troubleshooting
Hardware Symptom Charts
• The battery needs calibration, or it is nearing the end of its useful life.
– Calibration should be done when you first use the battery, and every few months
after. It allows the battery to properly calculate how much power is left in the battery.
– The battery is a consumable part. It can be charged and discharged only so many
cycles before it becomes depleted and can no longer hold a charge.
• The battery has a defect.
– Symptoms include, but are not limited to, a relative new battery that will not charge at
all, reports an “X” in the menu bar icon, status light on its case that will not go out. In
the first two cases, the battery may need calibration—try this first. In addition, after
troubleshooting at the system level, if it is demonstrated that the battery is causing
abrupt shut-downs or goes to sleep without warning, the battery can be considered
severely degraded and follow the criteria below.
– After recalibrating the battery, test it under the performance test specified in
Knowledge Base article 86440. If the battery lasts less than two hours, it is
considered to have severely degraded performance.
– Warranty Note: If the battery was purchased (either with the computer or as a
standalone part) in the last 90 days and exhibits severely degraded performance (as
defined above) provide an in-warranty replacement. If the battery was purchased
between the last 90 to 365 days, have the customer calibrate their battery. If after
recalibration, the battery still exhibits severely degraded performance, then provide
an in-warranty replacement. If the battery was purchased more than 365 days ago,
the customer will need to purchase a new battery.