Unitech PA720+ User Manual

vii © 2018 unitech Electronics Co., Ltd. All rights reserved.unitech is a registered trademark of unitech Electronics Co., Ltd.Battery Notice1. To guarantee optimal performance, it is recommended that rechargeablebatteries be replaced every year, or after 500 charging cycles arecompleted. It is normal for the battery to balloon or expand after one yearor 500 cycles. Although it does not cause damage, it cannot be used againand must be disposed of according to the location's safe battery disposalprocedures.2. If a battery performance decreases more than 20%, the battery is at theend of its life cycle. Stop use and ensure the battery is disposed ofproperly.3. The length of time that a battery lasts depends on the battery type andhow the device is used. Conserve the battery life by doing the following: Avoid fully uncharging the battery because this places additionalstrain on it. Several partial uncharges with frequent charges are betterthan a fully uncharged battery. Charging a partially charged batterydoes not cause harm to the unit. Keep the battery cool. Avoid hot vehicles. For prolongedstorage, keep the battery at a 40% charge level. Do not leave the battery uncharged and unused for an extendedperiod of time, the battery will wear out and the longevity of thebattery will be at least half of one with frequent charges.4. Protect battery life by not over or under charging the battery.5. Please do not leave battery unused for long time without charging it.Despite unitech’s safety precautions, the battery pack may begin tochange shape. If so, stop using it immediately. Please check to see if youare using a proper power adapter to charge the battery or contact yourservice provider for service.6. If you cannot charge the battery after it has been idle for an extendedperiod of time and it begins to heat up, please do not try to charge it. Itmay not be functional anymore.7. Please only use the original battery from unitech. Using a third partybattery can damage our products. Please note that when such damageoccurs, it is not covered by unitech’s warranty policy.