Date: Monday, February 1st, 1999, 00:00
From Apple Apple’s Tech Info Library article #11542 (“Battery Reset”)
Battery Reset 2.0 addresses a situation that may occur with some PowerBook G3 Series and iBook computers in which the battery, while in the system, doesn’t show up in the Control Strip, or a red X appears over the batteryicon in the menu bar.
PowerBook G3 Series (family number M4753 or M5343) or iBook (family number M2453) computer. The family number is located on the label on the bottom of the computer.