IBM BAT-1400A, IBM-4900 Cordless phone battery replacement Designed to fit (among others) cordless phones made by IBM As a direct replacement to fit BAT-1400A, IBM-4900 CS-CPB9038 and the cordless phone products including BAT-1400A, IBM-4900 This battery is designed as a replacement in the IBM product range, it should prove a more than acceptable replacement for the original and has a capacity of 1300 , this may be higher than the original but will mean it lasts longer between charges, it is supplied by a ISO 9001 certified manufacturer and will serve well as a power source for your phone or other device as many batteries of this sort are now used for other functions. Battery Type: Ni-MH Voltage of battery: 3.6V Battery Capacity: 1300