Product Description: The battery extender features: 1. 2-in-1 design. Use it as battery charger or as battery extender. 2. Build-in 100-240VAC charger w/ retractable AC plug 3. Dual charge mode: a. Regular mode: charge batteries directly for faster charge b. Condition mode: Discharge batteries first before charging to condition battery for optimal battery performance 4. Includes USB to DC cable 5. Charges 4 X AA NiMh/NiCd rechargable batteries 6. USB output allows for use with PDAs, cellular phones and other electronics via USB charging cable 7. MCU controller for fast charge and over charge protection 8. Dual smart LED Status lights Product Specification: 1. Controller: MCU 2. Input: 100 - 240 VAC, 50/60Hz, 160mA 3. Battery Size: AA 4. Charging Current: 1000mA, switching mode 5. Discharging Current: 300mA 6. Trickle Current: 33mA/Hr 7. Control functions: V max, thermal, timer 8. USB Outlet: Type A Socket Package Includes: Battery Extender X 1 3" USB to DC cable X 1