Specifications: Voltage: 15.2V. Capacity: 56Wh/3500mAh/4-Cell; Compatible Laptop Models:Dell Inspiron 17 7000 series 7773 7778 7786 7779 2-in-1, Inspiron 15 Gaming 7577 Series, for Dell G3 15 3579, for Dell G3 3579, for Dell G5 5587,G5 15 5587, for Dell G7 15 7588, G7 7588, G3 17 3779 Series, G3 3590;