Features: 
1) High energy density: the volumetric energy density is 350WH/l and the 
    gravimetric energy density is 150WH/kg
2) High operation voltage: the operating output voltage is 3.7V, about 
    three times higher than that of Ni-Cd and Ni-MH batteries
3) Minimal self-discharge: self-discharge is less than 10% per month
4) Long cycle life: can be used more than 500 cycles
5) Environment friendly: no Cd and Ag 
6) No memory effect: can be rapid charged without discharging 
7) Applications: used for mobile telephones, cordless telephones, cellular 
    telephones, portable and laptop computers, digital cameras, camcorders, 
    electric tools and toys, portable DVD players, and hybrid electric vehicles