The Panasonic CC75, 4-position Ni-MH battery charger individually charges any combination of up to four AA (up to 9 hours) or AAA (up to 7 hours) Eneloop Pro batteries; and 4AA Eneloop 7 hours, 4AAA Eneloop 6 hours. Individual charging means you can easily and efficiently charge from 1 to 4 batteries with differing levels of remaining charge. Outlets are often at a premium with all of the smart devices requiring power. The CC75 charger features a USB outlet that allows you to plug in a USB charging cord and power your devices. It also features 4 individual LED charge indicator lights. Once batteries are installed, the charger LED lights will turn on indicating the batteries are charging. If a non-rechargeable battery is installed, the LED will flash indicating the battery cell should be removed. After a battery is fully charged, the LED light turns off for that cell. Ideal for use at home, in the office, or on the road, this Panasonic CC75 charger is a convenient way to recharge any combination of up to four AA or AAA Ni-MH Eneloop Pro, Eneloop, or conventional Panasonic Ni-MH rechargeable batteries.