Aukey 20k Portable Battery
Aukey also has another option that's more traditional. The company has a 20,000 mAh portable extended battery charger for the same $29.99 price, but it doesn't feature quick charging, but most don't. Meaning it won't charge as fast, but $30 for 20,000 mAh of battery this is one of the best price/size options on the market. Aukey may not be as good as TYLT or the Lenmar mentioned in our post, but you should get plenty of juice from its 20,000 mAh battery.