This document discusses replacing the AC adapter for a Dell Inspiron 1520 laptop. It provides details on a new high quality replacement AC adapter that has no memory effect and a one year warranty. It also lists other Dell laptop models that have available batteries like the Inspiron 6400, 1420, 1501 and 1525 as well as some Sony models. Additionally, it provides steps for replacing an AC adapter that include checking the input and voltage specifications and ensuring it has the proper wall plug type.