Casio CP-1218, BT905, CP1240 Cordless phone battery replacement Designed to fit (among others) cordless phones made by Casio As a direct replacement to fit CP-1218, BT905, CP1240 CS-P501CL and the cordless phone products including CP-1218, BT905, CP1240 This battery is designed as a replacement in the Casio product range, it should prove a more than acceptable replacement for the original and has a capacity of 700 , 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-CD Voltage of battery: 3.6V Battery Capacity: 700