Here you will find a full range of replacement Siemens cordless phone batteries and battery packs for the Siemens Gigaset cordless phone models that begin with A and followed by 2 or 3 numbers. For instance:- Siemens Gigaset A12 A14 A16 A24 A120 A140 A145 A160 A165 A240 A245 A260 A265.