23glows red. It then glows green when the battery packs arefully charged.3. Slide the battery pack out of the charger.Notesï If the POWER lamp does not light when you turn on thepower, check the power cord connection.ï If the CHARGE lamp does not light at the start of charging,make sure the battery pack is firmly mounted into thecharger. Poor mounting of the battery pack may result infaulty charging.ï When the fully charged battery pack is placed into the batterycharger, the CHARGE lamp turns on and then off. In the caseof the five-socket charger, the CHARGE lamp lights green.ï When charging a battery pack that has not been used for along time, the CHARGE lamp may blink for a while. This doesnot indicate an error. You can continue charging.ï The battery pack can be recharged over about 300 times(when used at normal temperatures). If the battery pack isfully charged but runs out quickly, replace it with a newbattery.Charging TimeIt takes about 2.5 hours for a fully discharged battery pack toreturn to a fully charged state.Charging with the Optional AC AdapterNote: These instructions assume that the battery is installed inthe printer (see ìInstalling the Battery Packî below.