Right now, you can get a 20000mAh dual USB external battery pack for just $19.99 from KMASHI with a coupon code LIKWGR6D. Regularly priced at $29.99. With such massive capacity, in such a compact package, the Kmashi MP810 is perfect for flights, road trips or just any time you're away from an outlet. Enough power to go around. Marooned in transit forget your OEM adapter?With the Kmashi MP810, prolong your battery lifetime wherever you are. Holding enough power to charge most smartphones, keep your gadgets going for days and still have juice left to share. Strong but never slow. In addition to capacity, the Kmashi MP810 sports high-speed simultaneous ports.So whether you're charging an Apple or Android device, you'll get the most out of your technology. Designed around the details. Size:81x156x21 mm.Weight:450g.Just because the MP810 packs a punch, doesn't mean it can't look nice. We went with a smooth finish to keep you traveling in style.Simple,unobtrusive features, such as one-touch status LEDs, give you everything you need out of a battery without sacrificing aesthetics. For optimal use. Compatible with all Apple and Android smartphones, tablets and other USB charged devices with a 5V charge input. The iPod nano, Samsung and Asus tablets and some GPS and Bluetooth devices are not supported. Head on over to Amazon to grab yours today!