My wife online purchased SAMSUNG POWER BANK 11300 mAh product from Flipkat with 60% discount. Battery life is so amazing it run so long time and charging time is not more. Every one can buy it easy this product is affordable for every person. This product cost is not more. So before purchase a power bank please think about this once. Samsung service center is available in every city so no problem in future. Buy it once and enjoy for your use.