The durability of the battery does not depend on its size. On the packaging of the charging treasure, there are generally bidding cycle times, you can refer to: each time the charging treasure is used, its current is recycled once, and the service life will produce a certain loss. The biggest component that can affect the service life of the charging bank is the battery core.
High-quality charging treasure, its battery cells are generally used LG, Samsung, TCL and other international brand battery manufacturers produced A battery cell. This type of cell can generally be charged 800-1000 times. The use of B cell, that the number of use is about 200-300 times, the use of a year or no problem.
If the power supply purchased uses a C product cell, or even a second-hand cell, the number of uses cannot be guaranteed.