Sony will have to change the batteries of their own VAIO line of notebooks, as they are giving troubles to the users. Just two years before, the company had to recall 4.1 million laptop batteries which were placed in Dell, Apple and Lenovo notebooks due to the same reasons.

The company will have to change the batteries of the VGN-TZ100, VGN-TZ200, and VGN-TZ300 and VGN-TZ2000 series, due to “irregularly positioned wires near the computer's hinge and/or dislodged screw inside the hinge,” as there is a risk of the batteries getting overheat and also short-circuit thus also resulting in fire. The incident was experienced by a user of VAIO, when she got her arm injured while using her VAIO laptop.

Sony presently is offering a free inspection, that can be either at home or workplace. In some case, the notebook can also be shipped and if the notebook is found to be at risk, it will be repaired for free.

The company reported, “We do not expect the problem to cost them very much because no other companies have been affected and the problem is relatively simple to fix, the affected notebook being returned to the user quickly after repairs.”

The company however, ran into criticism as it reported about the problem to their Japanese customers just last month, when it knew about the risks from the last year.

Sony somewhat failed to make VAIO popular among the users, due to higher competition problems like these. However, the company is still hopeful that VAIO will turn into a 1000 billion Yen business by the end of fiscal year 2010.