Chapter 1 About your T7406 Phone 15T7406 Cordless Handset Installation GuideYou can talk continuously for up to five hours on the handset with a fully charged 1400 mAhbattery pack. A fully charged battery pack has a standby time up to 72 hours. Using the backlightshortens talk and standby time.Important battery pack informationBefore you use the T7406 cordless handset, read the following information.This unit contains a rechargeable nickel metal hydride battery:• Follow the proper installation and charging procedures for the T7406 battery pack. Refer to“Charging the T7406 Battery Pack” on page 12.• The rechargeable battery pack must be fully charged before you use the T7406 handset for thefirst time.• It takes approximately three hours to charge a standard 1400 mAh battery pack.• It takes approximately 12 hours to trickle charge the spare battery in the charging cradle.Nickel metal hydride batteries are recyclable. You can help preserve the environment by returningyour unwanted batteries to your nearest recycling center for recycling or proper disposal.Phone 1-800-8-BATTERY to locate a Battery Recycling Center near you.Indicates battery pack is completelydischarged.Note: The battery level icons show approximate charge status values.Warning:• The battery will explode if disposed of in a fire.• Do not use the nickel metal hydride batteries provided with your T7406 cordlesstelephone with any other product. These batteries were designed specifically for usewith theT7406 telephone and the T7406 charger ONLY. Improper use of the T7406batteries may result in fire hazard.• Do not do anything that would cause the battery to short circuit.• Do not charge the battery with any charger other than the one supplied with thisequipment.Warning:• Nickel metal hydride batteries must be disposed of properly.• Do not dispose of the batteries in office or household waste.