Sell Amgras 10000mAh Powerbank Fast Charging Dual USB Portable Charger PowerIQ Technology Power Bank 20W best price

【2022 NEW】 Fashion and function are synchronized. The stylish, cute appearance hides great energy. The ultimate battery. The ultimate design brings the best products to every customer. MODEL: 30000 mAh Input: 5V-2A Output: 5V-2.1A Capacity: 30000mAh Size: 149mm*71mm*19mm Rated output: ≥20000mAh ≥60Wh Charge retention: >5000h 4 charging port Micro / Iphone / Type-C/ USB 【High Quality Portable Powerbank】: Made of durable and reliable ABS+PC+Silicone material.Awesome for outside activities such as camping, hiking and other emergency use. 【Compatible with Multiple Devices】: Compatible with all smart phones,Tablet and other USB devices. More than Thousands and Thousands of recharge lifecycle. Very reliable and durable.ower bank provides more convenience in your daily or in your trip. 【Convenient Smart Express Charge】: PowerBank has 4 cable .Makes it easy to charge 4 devices simultaneously at full speed . 【Safety Protection】: Built-in safeguards protect your devices against excessive current, overheating, and overcharging. FQA: Q: Power bank has two regular standard of capacity , one is the battery capacity, the other is the rated capacity. The 10000mAh power bank being labeled 10000mah/3.7v but the rated capacity is 6500mah/5v. Why? A: For example:The most important reason is the conversion rate. Because most of power bank's battery voltage is 3.7V, and power bank needs to increase the voltage to 5V when charging the mobile phone, which making the power bank's conversion efficiency only 3.75/5=74%. Also include generated heat when battery voltage boosting, and various of wire consumption, Electricity and self-consumption.