Charging a battery with Fast Travel Charger (ACH-4U) � Connect the lead from the charger to the bottom of the phone.
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Connect the charger to a standard 120V AC outlet.
When the battery is charging, the battery indicator on the right side of the display scrolls. Allow the battery to completely charge. Charging is finished when the segments stop scrolling. The charging times depend on the type of the battery and the charger used. See the �Accessories� chapter for details. When charging is finished, disconnect the charger from the AC outlet and from the phone. When you disconnect the power cord of any accessory, grasp and pull the plug, not the cord. Discharging the battery Either leave your phone switched on until it turns itself off or use the battery discharge facility of any approved accessory available for your phone. The battery can be charged and discharged hundreds of times but it will eventually wear out. When the operating time is noticeably shorter than normal, it is time to buy a new battery.
Battery Charge
The phone gives you a warning tone and the message BATTERY LOW when only a couple of minutes of talk time remain. When no more battery power remains, you get a Recharge Battery Tone and the message RECHARGE BATTERY. The phone switches itself off. Connect your phone directly to a charger or place it on a charging stand with the power on or off to begin charging.