[07/29/2016] Anker PowerCore Edge 行動電源，蓄電量高達 20000mAh，Anker PowerCore Edge Ultra-High Capacity Portable Charger, Slim Design External Battery Power Bank with Premium Travel Pouch, 20000mAh, 2 USB Ports for Apple iPhone, Samsung Galaxy and More，輕薄設計，支援PowerIQ and VoltageBoost技術，目前特價只要，$34.99 USD。Prime境內免運費。哪裡買: Anker via amazon。
或是在這裡買: Walmart。