This is a high-performance replacement laptop battery for the Toshiba Qosmio-áF755-3D350, guaranteed to meet or exceed the OEM specifications of your original. The laptop battery is 8.2 x 2.07 x 0.81 inches with an output of 10.8 volts. The chemistry is LI-ION at 4400mAH capacity. Manufactured by Empire Scientific, model number LTLI-9188-4.4. We offer a 1 Year Warranty with purchase. See this product elsewhere at a lower price? Call or email us; we have a Price Match Guarantee.