Aastra DT423 User Guide - Cordless Phones for MX-ONE - Page 82
Maintenance
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User Manual Cordless Phones for MX-ONE™ 18 Maintenance 18.1 Maintenance of Batteries 18.1.1 Battery Warnings The "Low battery" icon is displayed when the battery has 10% or less remaining capacity left. In addition; a warning signal sounds every minute, the LED flashing orange, and the dialog window "Battery low. Charge now." appears. The "Empty battery" icon is flashing when the battery has 5% or less remaining capacity left. In addition; a warning signal sounds every second, the LED flashing red, and the dialog window "Battery empty. Shutting down." appears. During a call, only the corresponding battery warning signal will notify the user. The warning signal cannot be silenced during a call. When not in call, the warning signal can be silenced by pressing or . 18.1.2 Charge the Battery Place the handset in the desktop charger or in the rack charger. The battery is being charged when the LED on the handset is steady orange. When the battery is fully charged the LED will be green. An animated battery icon is also shown in the display indicating charging by starting with its current charge and ending with the full charge. A filled battery icon indicates a fully charged battery. Note: Only use the prescribed chargers for charging. 18.1.3 Charge Spare Batteries Spare batteries can be charged with a separate battery pack charger. It can charge six batteries at the same time. IMPORTANT: It is not permitted to charge intrinsically safe batteries using the battery pack charger. 18.1.4 Replace the Battery If the standby time for the handset becomes too low, the battery should be replaced by a new one. Please contact your system administrator or your supplier, for information about new batteries. Attach the battery as described in figure 6 on page 80. It is attached inside the battery lid and is connected to the handset in such a way that no miss-contact is possible. Note: Use the battery pack opener to untight the screws on the intrinsically safe handset. 1424-EN/LZT 103 089 B 2014-04-13 76