This power bank is durable and easy to use. Quite remarkable in the word of mouth of the African peoples. Customers who have used it are delighted. Of course, you get the product in case, please fully charge before using it, in order to affect the sense of product experience.P bank battery technologyAll P Banks use rechargeable batteries based on lithium technology. Lithium-ion and lithium-polymer batteries are the most commonly used for P Banks, but don't be surprised if other types start to arrive on the market soon.Battery technology is the key to many new developments: from mobile phones to electric vehicles, and as a result, there are likely to be spinoffs in P Banks. The two technologies currently used have slightly different properties:Lithium-ion: Lithium-ion batteries have a higher energy density, meaning they can store more electrical charge in a given size or volume, and are cheaper to manufacture, but they can have aging problems. Lithium-polymer: external lithium-polymer batteries do not suffer from the same aging and are therefore a better choice.However, they are more expensive to manufacture and therefore may not suit all budgets. Sometimes it may be better to spend less, especially if they may be accidentally lost or left in some places. Both forms of P bank work well, but it is a balance between cost and performance.Smartphones are loaded with numerous mobile applications and powered by efficient processors for fast operations. These high-performance mobile devices consume a lot of energy provided by the battery, hence the need for this reliable mobile accessory to boost the battery in order to take advantage of the various features available on them.Not only aesthetic, this powerful 20000 mAh P bank is also portable and pleasant to the touch. It is the ideal travel companion alongside your smartphone, tablet or digital camera. Here we offer you this P bank lithium-polymer