Brand new replacement battery ASUS X550CA, X550 Series, F450L, F550 Series, A41-X550 & A41-X550A Specifications: Voltage: 14.4V Capacity: 2200mAh Cells: 4 Colour: Black Suitable Models: ASUS X550CA, X550A, X550L, X550, X450V, X450VB, X450VC, X450VE, X450, A450, A450C, A450CA, A450CC, A450L, A450LA, A450LB, A450LC, A450V, A450VB, A450VC, A450VE, A550, A550C, A550CA, A550CC, A550L, A550LA, A550LB, A550LC, A550V, A550VB, A550VC, F450, F450C, F450CA, F450CC, F450L, F450LA, F450LB, F450LC, F450V, F450VB, F450VC, F450VE, F550, F550C, F550CA, F550CC, F550E, F550EA, F550L, F550LA, F550LAV, F550LB, F550LC, F550V, F550VB, F550VC, F552, F552C, F552CL, F552E, F552EA, F552EP, F552V, F552VL, K450, K450C, K450CA, K450CC, K450JF, K450L, K450LA, K450LB, K450LC, K450LD, K450LN, K450V, K450VB, K450VC, K450VE, K550, K550C, K550CA, K550CC, K550L, K550LA, K550LB, P550C Compatible part numbers: A41-X550, A41-X550A, AS X550-4S1P What's in the box 1x REPLACEMENT BATTERY