Main Features: 1. Micro computer control 2. AA,AAA battery type are compatible 3. Suitable for Ni-CD and Ni-MH rechargeable batteries 4. Four charge channels separately that can charge one to four batteries 5. Folding AC plug blades for easy storage Main functions: 1. Voltage detection with minus Delta V &. To ensure fully charged 2. Error/Failure battery detection 3. Charging indication: (1) Charging: LED light-red (2) Finished : LED light-green (3) Error: LED light flash 4. Timer protection 5. Temperature protection Specification: 1. Product Name: Smart Rapid Charger 2. Main input voltage: AC100-240V 3. Input frequency:50/60Hz 4.Power consumption:10W 5. Charging current control: Automatic timer cut-off system 6. Specified temperature range: 0-40°C