Unitech PA720+ User Manual

viii © 2018 unitech Electronics Co., Ltd. All rights reserved.unitech is a registered trademark of unitech Electronics Co., Ltd.CAUTION!  RISK OF EXPLOSION IF BATTERY ISREPLACED INCORRECTLY.DISPOSE OF USED BATTERIES ACCORDINGTO THE INSTRUCTIONS. 如果更換不正確之電池行事會有爆炸的風險請依製造商說明書處理用過之電池 如果更换不正确之电池行事会有爆炸的风险请依制造商说明书处理用过之电池Battery charge noticeIt is important to consider temperature when the battery pack is charging.Charging is most efficient at normal room temperature or in a slightly coolerenvironment. It is essential that batteries are charged within the stated range of0°C to 40°C. Charging batteries outside of the specified range could damagethe batteries and shorten their life cycle.CAUTION! Do not charge batteries at a temperature lower than 0°C. This willmake the batteries unstable and dangerous. Please use a batterytemperature detecting device for a charger to ensure a safecharging temperature range.CAUTION! To ensure the unit working properly, please keep all connectorsaway from the contaminants staying inside of them such as dust,grease, mud, and water. The negligence may cause the unit withno communication, short circuited, overheated and so on.CAUTION! If the connector is damaged, please ensure the connector is beingfully repaired before use the unit to avoid causing short circuited.