Polanfo Power Bank 20000mAh Portable Charger External Battery-Black Higher than Higher:POLANFO high capacity charger 20000mAh,Charge iPhone5 up to 10 times,Equivalent to 10 iPhone batteries.It is powerful enough to give up to 100 hours of additional talk time. Lighter than Lighter:It adopts the Polymer Battery(the safest battery type so far),20% the size and and 30% the weight of an ordinary lithium battery.So it is half the weight of other power banks yet the same capacity. Thinner than Thinner:Cased in a fresh anodized finish with aluminum alloy from the same manufacturing standard as Apple's products,but also has the same cell with iPhone 6s. So it is half the height of other power banks yet the same capacity. Accurate Power Display:Smart LED shows remaining power in digital format, and it's hidden until activated,90% of all other power banks never have this feature. Compatible with iPhone 6, Plus, 5S, 5C, 5, 4S, iPad Air, Mini, Galaxy S6, S5, S4, S3, Tab 4, 3, 2 Pro, Nexus 4, 5, 7, 10, HTC One, One 2, LG G3, MOTO, X, G and most other Phones and Tablets.