Initially when I bought a Dell Inspiron 1545, everything was fine. However, after about a year, I started having problems with the charger and the battery. Keep in mind, this is when the warranty happened to run out. Anyways, I ordered a new battery and charger for the laptop, and all seems to be going well. However, I have read other articles that suggest the replacement batteries will soon stop working too. But I have been keeping an eye on how long I use the charger and battery for, so it will consume less electricity and work for longer.
IN SHORTER WORDS - This replacement battery works fine, and does the same job of the original one!