The Panasonic CC87, 4-position Ni-MH battery charger can quickly, and individually charge any combination of up to four eneloop pro AA batteries (6 hrs.), AAA (4.5hrs.) or 1-2 AA (3hrs.), AAA (2.25 hrs).* Individual charging means users can easily and efficiently charge 1 to 4 cells with differing levels of remaining charge. A huge time saver! This charger also features Mobile Charging technology which can charge mobile phones and other devices via a USB output port, from stored battery power.