8 Bay/Slot Smart Battery Charger for AA AAA Ni-Cd Ni-HM Rechargeable Batteries with LCD Display - Black 1.LCD display screen indicates the individual charge status of each cell, and preventing energy wastage at the same time. 2. 8 individual charging channels, single charge or at the same time is allowed. 3. The microprocessor control protects batteries with a combination of egative Delta Voltage detection circuit, peak voltage detection and an integrated timer.Automatic voltage change 100-240V. 4. Bad cells detection and reverse-polarity protection. 5. Smart easy for you to organizer.