Zendure is a 6000mAh battery which has amazing design, compact, beautiful and lasts longer. Why would you need another super performance battery when the market is full of them,at affordably low prices? Because not all batteries, even those which give more than 1000 mAh of power might not be really efficient in terms of delivering power to your devices. There are several ways of delivering power, cheap devices tend to occur losses. Cheap batteries do not know when to switch off and they usually die after some time of extensive usage. In contrast, Zendure is developed only from high quality chips and materials, it is very safe, and performance-wise it can charge devices much more efficiently than those cheap alternatives. Moreover, coming to safety issues, zendure wins all competitors here. This is excellent battery for lovers of performance!