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【NOTICE】 It works with both 5V USB and DC 7.2V/7.4V powered heated apparels.(DC 3.8mm female port, compatible with both DC3.5mm and DC3.8mm male pin,

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【NOTICE】 It works with both 5V USB and DC 7.2V/7.4V powered heated apparels.(DC 3.8mm female port, compatible with both DC3.5mm and DC3.8mm male pin,

VINCOSY Heated Vest Battery Pack, DC 7.4V 3A and 5V 2A USB Power Bank 10000mAh for Electric Heating Jackets, Pants, Coat, Overcoat, Stadium Seats

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Portable Laptop Power Bank Universal Type C 80wh 21600mAh 65W Travel Laptop Battery for Smartphones, Tablets, Laptops - China 80wh 21600mAh 65W and Laptop Power Bank price

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If I use a 10000mAh power bank to power a 5V 2.4A device, how long would it literally last? And how about in real life? - Quora