There are only 10400 14500 16340 18650 21700 26650 32650 32770 battery cells。Our battery cells have large capacity density; Long service life; The working voltage of single cell is as high as 3.6v~3.8v, which is much higher than 1.2V of nickel metal hydride and nickel cadmium batteries; No memory effect (it is not necessary to empty the remaining power before charging, so it is convenient to use); Good safety performance (the polymer lithium battery pack adopts aluminum plastic flexible packaging in structure, which is different from the metal shell of the liquid battery cell. Once a safety hazard occurs, the liquid battery cell is easy to explode, while the polymer battery cell will only be inflated at most)