The Jaqqs Premium battery is a long life 3.7 volt 650mAh rechargeable manual battery. it only takes about 3 hours to fully charge a battery. The average to heavy user can get 6 to 8 hours of use from a fully Jaqqs Premium charged battery

Characteristics:

    Diameter: 14mm 
    Length:   71mm 
    Weight:   40g 
    Content of battery :650 mah
   Nornal Working Voltage:3.6v-4.2v
   Full battery can keep for :about 4-6 hours.
   Charge time:2-2.5hours