- 5 -Charging the BatteryFor initial use, you need to charge your device for about 16 hours. After that,you can charge it everyday to recharge the battery to full capacity. You cancharge your device using the USB charging cable or the docking station.CAUTION! Operating the PA520 for the first time without the AC adapter, andwithout fully charging the backup battery may result in loss of datastored in RAM memory.NOTE: Data you entered may not be properly stored until the internal backupbattery has been fully charged.To charge the device using the USB charging cable:1. Attach the clip plug to the AC adapter, if necessary. Slide the replaceableclip plug into the AC adapter until it locks into place with an audible click.2. Press and hold the connector button on theUSB charging cable and connect it to thePA520 (1).3. Plug the AC adapter cable into the powerjack on the USB charging cable (2).4. Connect the AC adapter into an electricaloutlet (3).To charge the device using the docking station:1. Plug the AC adapter cable into thepower jack on the docking station.2. Plug the AC adapter into an electricaloutlet.3. Slide the device into the docking stationuntil it clicks into place.