Anker PowerCore Battery Pack

Anker built its empire on making reliable charging products at fair prices, and the PowerCore portable charger is the product that started it all. With 20,000+ mAh capacity, it charges a phone four to five times over and delivers power fast enough to keep up with heavy usage. It's compact enough for a jacket pocket, has been through more airport security scanners than most passports, and Anker's 18-month warranty actually means something.