Batteries are arguably the most critical part of a device considering the fact that they keep the device up and running. Power back-up is one of the key factors that defines your mobility and safety of the stored data. It is often dangerous to use any battery with your laptop as it mayplement its statutory technical requirements. This may affect the performance of the laptop and can even damage its hardware. They are backed by a full 12-month replacement warranty By World It Hub. Patible with specified model, these batteries also conform to the required specifications.