I read the comments from previous buyers and I ordered anyway (!) This battery despite some negative remarks (period of use does not conform etc ...) Well for my Inspiron 1525 I passed a autonomy 20mins with Dell used battery at 3:45 with this generic battery price of half a original battery. I took the time to understand the instructions (in English), which recommends that the first use of fully drain the battery before plugging in the computer industry for the "format". The battery integrates perfectly into the housing, handles smoothly and plays its role perfectly. So ... no worries.