Southwestern Bell Freedom Phone Cordless Battery S60506 Rechargeable 3.6V/270/300mAh NICKEL CADMIUM Battery New.

 Be sure replacement battery is the same size, shape, voltage, mAh and polarity as the one you are replacing. Below is a compatibility chart.

Models
AT&T/Lucent: 4200, 4210,4300,4336, 4345, 4410, 4600,  5200, 5210, 5830,7215, 7220, 7310, 7340, 7345,7610,7620, 7625,7630,7640, 7700, 7710, 7720

Panasonic: KX-T3831R, RCT-3B-C2

Phonemate: CP725, 2350

Bell South: 672, 3675,3890,6750, 6860,756BK, 768BK,797BK, YCL-7701,YCL-7702,YCL-7703

Conair: CTP9000 CTP9010

GE: 2-6730,2-6790,  2-9635, 2-9638,2-9645, 2-9735, 2-9740, 2-9750,2-9752, 2-9752B,2-9770,  2-9775

Southwestern Bell: FF-555, FF-641, FF-642, FF-646, FF-702, FF-1500, FF-1600, FF-3050, FF-4000, FF-5000

VTech: VT-9117, VT-9110, VT-9152