XK-1 iBook Charger

The XK-1 iBook Battery Charger will charge Apple battery models A1008, A1061, A1062, A1080, A1022, A1060, A1079, A1012, A1045, A1078, and A1148. These are the iBook 12 and 14 inch. Also, the PowerBook 12 and 15 inch aluminum batteries. It will also charge the MacBook A1185 battery.
Flashing green is charging, solid green means the battery is charged.
A completely drained battery will take approximately 1 hour to recharge.
As the battery ages, it does not hold as much of a charge as when the battery is new. The PMU (power management) in the computer knows only the original setting until the battery is re-calibrated to the current "state of charge". When the MacBook battery needs to be calibrated, there is an amber LED which will alert you when calibration is necessary. Calibration makes the fuel gauge in the menu bar accurate. Press the red button and the calibration cycles will begin.
"Wake Up" feature . A small battery charge is necessary to dialogue with the charging circuit in the laptop. You may have a good battery that appears dead to the MacBook charging circuit. It is possible that it has only fallen below the minimum voltage of 2.8 volts per cell. When the XK-1 reads a dead battery, a small current (500 mamps) is applied for 5 minutes attempting to put a charge into the dead battery. If the battery voltage can be raised, then the charging circuit can start to work. This can possibly revive batteries which appear dead after a long recess.