Positives: The battery initially worked without problems, was recognized by the notebook. There was no installation software required Negatives: After about 6 months, the capacity rapidly went to their knees, the term is less than 30 minutes. The battery is very hot, and the computer constantly results Error Messages "Replace the battery". The manufacturer writes: For batteries a reduced warranty of 6 months applies. Conclusion: With 6 months life a bad buy, prefer to pay more for a brand product that lasts longer.