Dear customer. Kindly note: 1. In order to fully activate the battery, please charge it via outlet or computer for 10 hours at least at the first 2-3 uses. 2. Solar panel 1.2W is too small, so the energy transformation from solar to electricity is too slow and the solar charging speed is subject to sunlight intensity. In daily life, we highly recommend charge it via wall outlet. 3. Fully charging by outlet takes approximately 10 hours. Do not charge it all day nor over voltage. 4. For safety, DO NOT leave the power bank charging in car in case of high temperature and avoid crashing. Do not make charge while charging itself. Please charge item through wall outlet for the first time. 5. Fully charging by solar takes approximately 48 hours or more. Manufacturer’s Maximal Capacity: 500000mAh – only symbol name ; Actual capacity: ~12000-15000mAh depends on the quality of the power supply to this device. Solar charging is supplemental, please do not rely on it for full charge. The iPhone 5-6 Lightning Adapter and the A/C plug are not included with this device! To find Lightning Adapter, look for iPhone 5-6 charging cord. To connect to an electrical outlet, look for a mobile phone A/C power adapter.