Kindly Noted:
1. In order to fully activate the battery, please charge it via outlet for 10 hours at least at the first 2-3 uses. It means that it the best to use 2-3 times before using it for travel.
2. The best operating temperature for solar phone charger is -10°—50°, for security reasons, please don't put it alone in the outdoor parked car or other high-temperature environments.
3. Keep the USB port and USB cable dry to avoid physical short circuits inside the solar power charger supply and quit working. If the power bank appears swell, smoke or other unusual phenomena, please quit using solar charger.
4. If the solar power bank is not used for a long time, it should be charged and discharged at regular intervals to maintain its normal performance. It is best to charge and discharge the solar bank once a month, so as to ensure the best state of the internal battery and effectively extend its service life.