Oppo Original Powerbank : Oppo online store offering 30% discount on 10000mah powerbank. No coupon required. OPPO 10000 mAh Power Bank helps you make the most of portable charging without compromising on safety, even when you are charging low-current devices. In addition, its 2-in-1 cable (Micro-USB and USB-C) makes the task of connecting devices to it simple and hassle-free. Featuring 18 W Fast Charging, this powerbank is about 16% faster than ordinary powerbanks .