Battery not recognized does not charge or does not reach capacity
- Plug in the power cord for five minutes to revive a drained battery. Refer to Knowledge Base article 304301: "MacBook and MacBook Pro: Battery not recognized after being fully drained."
- To properly evaluate the battery, follow the steps in Knowledge Base article 500644: "Portable Computer Battery Screening Process."
- If the computer is on Mac OS X 10.4.8 or later, check to see if the latest Battery Update has been installed. Do not replace a battery unless Battery Update 1.2 (or later) has been installed. For complete instructions, refer to Knowledge Base article 305256 About Battery Update 1.2.
- For retail or dispatch service providers only: Be sure to record the Full Charge Capacity (FCC) and Cycle Count values in your case notes. If the computer is on Mac OS X 10.4 or later, these values can be found in Apple System Profiler: Hardware: Power: Battery Information.
Also see 305364: MacBook, MacBook Pro: Battery not recognized or "X" icon appears on menu bar.
(The "X" icon appears on computers running operating systems prior to Mac OS X 10.5.)
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