Specifications: Output: DC5.0V/0.5A Input: DC5.0V/1A Solar: 280mA MAX Battery Capacity: 2800mAh Storage Time: 12 Months Max output Power: 2.5W Charging time: about 4 hours Run time: ≥4 hours Cycle life: 300 cycles Weight: 100g Package contents: -1* New 2800mAh Solar Power External Battery Backup Charger Case For iPhone 6