Acer TravelMate Timeline 8571 series (LC.BTP00.052) Li-Ion Battery. Acer TravelMate Timeline 8571 series Notebook Battery. This is a 11.1 Volt, 6000 mAh, Li-Ion Battery . Dimensions: 10.63 x 1.69 x 0.83. 100% OEM compatible. This Acer TravelMate Timeline 8571 series Battery comes with 12 months warranty. Free shipping and 30 days no questions asked money back gaurantee!  If you need the Battery, you can Click here to read more Information.