3-Cables Portable Power Bank 10000mAh Fast ChargerRichRipple Power banks battery technology: Real Full 10000mAh Capacity.All power banks use rechargeable batteries based around lithium technology. Lithium-Ion and Lithium-Polymer batteries are most commonly used for power banks, but don’t be surprised if other types start to hit the market before long. Battery technology is key to many new developments: everything from mobile phones to electric vehicles, and as a result it is quite likely there will be some spin-offs into power banks.The two technologies that are currently used have slightly different properties:①Lithium-ion:   Lithium-Ion batteries have a higher energy density, i.e. they can store more electrical charge in a given size or volume, and are cheaper to manufacture, but they can have issues with ageing.②Lithium-polymer :   Lithium-polymer power banks won't suffer  ageing quickly, so they are a better choice. However they are more expensive to manufacture and as a result they may not suit all budgets. Both forms of power banks work well, but it is a balance between cost and performance.Smartphones are loaded with a lot of mobile applications and powered by efficient processors for fast operations. These high performing mobile devices consume a lot of energy provided by the battery, hence the need of this reliable mobile accessory to boost the battery so as to enjoy the various features available on them. Not only aesthetically pleasing, this 10000mah powerful power banks is also portable and pleasant to the touch. This is the perfect travel companion alongside your smartphone, tablet or digital camera.We are here suggest you this Lithium-polymer  Power bank, and We RichRipple has already down the cost to the lowest because we have factory to produce these power banks by ourselves.