Solar Power Bank 10000mah Waterproof SOS External Auxiliary Battery Powerbank

SPECIFICATIONS Brand Name: NoEnName_Null Output Interface: Double USB Input Interface: Micro USB Battery Type: Li-polymer Battery Shell Material: Silicon Features: Built in Cables Origin: Mainland China Type: Portable Power Bank Certification: CE Support Quick Charge Technology: Two-way Quick Charge Max Input: 10W  Solar Power Bank 10000mah Waterproof SOS External Auxiliary Battery Powerbank For iPhone 12 11 Huawei Xiaomi 14 13 Power Banks Main Features: Dual USB ports, you can charge phones, pads or other small electronic devices simultaneously Material: Solar panel, ABS plastic cover, silicone frameLED Light works perfectly in darkness, especially for emergencySOS distress signal to help other people find you Compass, help to find directionSpecification:- Battery type: Li-polymer battery- Capacity: 20000mAh- Input: DC5V/1.0A- Output: DC5V/1A, DC5V/2.1A Note: Even in a perfect laboratory condition,The efficiency of energy transformation from solar to electric energy is really low.