ERICSSON A1228 Extended Cordless phone battery replacement Designed to fit (among others) cordless phones made by ERICSSON As a direct replacement to fit A1228 Extended CS-ER688SL and the cordless phone products including A1228 Extended This battery is designed as a replacement in the ERICSSON product range, it should prove a more than acceptable replacement for the original and has a capacity of 1200 , 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: Battery Capacity: 1200