Sony is warning owners of new VAIO Fit 11A to stop using them immediately after discovering the hybrid laptops are at risk of catching fire, according to The Wall Street Journal. The company is currently in the process of notifying over 25,000 VAIO owners that their computers may include faulty batteries that are unsafe. The VAIO Fit 11A was introduced worldwide earlier this year, offering a small-screened take on its larger Fit convertible laptops, but has failed to make much of an impact. Sony says its sold 25,905 of the hybrids in total, which includes 497 in the US, 7,158 in Europe, and 3,619 in Japan.