10 © 2019 unitech Electronics Co., Ltd. All rights reserved.unitech is a registered trademark of unitech Electronics Co., Ltd.All product and company names are trademarks, service marks, or registered trademarks of their respective ownersPA760 User’s Manual1.4 Getting Started1.4.1 Remove / Install the Battery Cover1. To unlock the battery by turning upthe two knobs. And pull the batteryup to remove it.2. To lock the battery by turningdown the two knobs. Make surethe battery is securely closed, oryou may be unable to turn on theterminal.WARNING! There is a risk of fire and burns if the battery is handled improperly. DO NOTdisassemble, crush, puncture, short external contacts, or dispose the batterypack in fire or water. DO NOT attempt to open or service the battery. Dispose ofused batteries according to local recycling guidelines in your area.