YCM 2.4V 1600mAh Cordless Phone Battery for Vtech BT175242 BT275242 89-1341-00-00 6119 6128 89-1341-00-00 CS6129-54 AT&T 50 91301 Empire CPB479J Dantona BATT50 4 Pack Ni-MH Replacement Rechargeable Battery Voltage: 2.4V Capacity: 1600mAh Compatible Brand: Vtech, Sony, AT&T, Dantona, Radio Shack, Sanyo Please search with model number of your original battery and laptop for the right battery . If you have question about compatibility, please feel free to contact us.