Rechargeable Lithium Batteries - Ziyokthy double aa batteries with 1300mWh high capacity, up to 1200+ charging cycles. Experience long-lasting power due to their high energy density and low self-discharge. Built-in smart chip and led indicator, convenient and safe charging. Stable 1.5V Voltage - AAA Rechargeable lithium cells supply 1.5 volt outputs, stronger power than 1.2v Ni-MH/Ni-CD batteries, better performance in high-power demand devices. Quickly recharge your battery with the latest charging technology, Full charge AA Lithium battery in 2.5 hours.