Chapter 1 Getting Started8 Copyright 2006 unitech Electronics Co., Ltd. All rights reserved. unitech is a registered trademark of unitech Electronics Co., Ltd.Charging the BatteryBefore using the PA600 for the first time, you need to charge it for about 16 hours.After that, you can charge the PA600 4 hours to recharge the battery to full capacity.Charge the PA600 using the USB charging cable or the docking station.CAUTION! Operating the PA600 for the first time without the AC adapter, andwithout fully charging the backup battery may result in loss of datastored in RAM memory. When the main battery is removed, thebackup battery retains RAM data in memory for 2 hours, pleasecharge the battery for the period to avoid the data loss in RAM mem-ory.NOTE: Turn the backup battery switch on before charging the battery. Data youentered may not be properly stored until the built-in backup battery hasbeen adequately charged.Charging the Battery using the USB Cable1. Press and hold the connector button on the USB charging cable and connect itto the PA600 (1).2. Plug the AC adapter cable into the power jack on the USB charging cable (2).3. Connect the AC adapter into an electrical outlet (3).321