Specifications: Model: BQ-390 Brand: Panasonic Input: AC100-240V 50/60HZ, 8W Output: DC 1.5V 550mAx4 / 430mAx2 Features Charges 1, 2, 3, or 4 batteries Charges up to 4 (AA) or 2 (AAA) Charged Nicd and NiMH Batteries Smart charging system ensures that batteries are never overcharged 1 LED that indicates when the last battery has been fully charged Alkaline detection Reverse polarity protection Temperature sensors prevent over heating World-wide voltage adaptable (100-240V) Convenient flip-out plug Ultra light and compact