1.Please charge it once every 3 months when not in use for a long time.2.Please unplug it when the indicator keeps on to avoid damage caused by long-time charging.3.Please use it in an environment where the temperature is 0-45℃ and the relative humidity is 20-70%Rh. Keep away from moisture, high temperature and fire.4.Please store it in a dry place. Keep away from moisture and corrosive material.5.Do not use chemicals, like soap or detergent, to wash it.6.It is forbidden to disassemble, knock it or put it in water or fire.7.Please discontinue use if the battery becomes larger or battery leakage/unpleasant smell occurs.