Product Feature:

    EBL 1.5V USB AA Rechargeable Lithium Battery, Steady Voltage for high current applications
    1200 cycles time - Long battery Life
    Ideal for digital cameras, remote controls, toys, and more for high current applications
    1.5V Lithium USB AA battery - Steady Voltage
  3300mWh li-ion long-lasting Convenient long-lasting double a batteries
    These cells can provide approximately the same and steady voltage until the whole cell is depleted
    Fully charged in 2 hours - Fast charging AA Battery
    Full charge in 2 hours, Advanced iQuick charging technology with DC 5V/2A USB input, more efficient and energy-saving
    Build-in Light Show the Charging Process
    it showed the red light indicating recharging.
    it showed the green light indicating when they were fully charged

Product Specification:

     Size: AA
     Voltage: 1.5V
     Capacity:AA 3000mwh
     Chemistry: Li-ion
     Type: Rechargeable Battery