Samsung AA-PL2VC6B Lithium-Ion (Li-Ion) 5900mAh 11.3V rechargeable battery

6 Cell Battery, 11.3 V, 66 Wh (5900 mAh), Black When you’re on the go, you don’t want to worry about having enough battery power for your laptop. With an extra battery on hand, you’ll be able to accomplish it all. Samsung batteries are designed exclusively for our mobile computers and because they passed rigorous compatibility tests, you can rest assured that they are reliable. Use your laptop and spare battery together for a powerful, hassle-free mobile PC experience no matter where you are.