Always on the go? No more worries about running out of battery power! You can power your Laptop with this 4-Cell Lithium-Ion Battery from Dell&132;&162;. With a capacity of up to 55 WHr, the battery lets your laptop work seamlessly when you are on the move.\n\n\n\n\n\n\n\n Model: 451-BBSY\n\n\n\n\n\n\n\n