How mamy years about sony PCGA-BP1N batery's life

Question:How long does it live usually the laptop battery?I mean how many years.But now i want buy Question:How long does it live usually the laptop battery?I mean how many years.But now i want buy sony PCGA-BP1N battery would you tell me the result? Answer:around 2 years, the best tip is to disconnect the battery when you work where an electric connection exist.this way you will keep your battery minimum the double of its life.But different model have different life. Dell:Dell Latitude D420 battery , Dell Inspiron 7000 battery , Dell Inspiron 2500 battery , Dell Inspiron E1405 battery , Dell Inspiron 5000 battery Hp:HP Pavilion ZV5000 battery , HP HP PP2210 Series battery , HP HP PP2200 Series battery , HP Presario R3000 battery , HP Presario R3000AP battery , HP Pavilion ZT4000 battery Apple: Apple A1078 battery , Apple A1008 battery , Apple A1079 battery , Apple A1060 battery , Apple A1148 battery , Apple M8244 battery , Apple M7426 battery generally,on the top of battery have longer life .you can try it . would you tell me the result? Answer:around 2 years, the best tip is to disconnect the battery when you work where an electric connection exist.this way you will keep your battery minimum the double of its life.But different model have different life. Dell:Dell Latitude D420 battery , Dell Inspiron 7000 battery , Dell Inspiron 2500 battery , Dell Inspiron E1405 battery , Dell Inspiron 5000 battery Hp:HP Pavilion ZV5000 battery , HP HP PP2210 Series battery , HP HP PP2200 Series battery , HP Presario R3000 battery , HP Presario R3000AP battery , HP Pavilion ZT4000 battery Apple: Apple A1078 battery , Apple A1008 battery , Apple A1079 battery , Apple A1060 battery , Apple A1148 battery , Apple M8244 battery , Apple M7426 battery generally,on the top of battery have longer life .you can try it .