I bought two of these sold by AccessoryOne as "LG OEM Original" batteries. They provide shorter talk/standby times than the 18-month-old LG batteries I replaced. They also become considerably warmer during conversation than the originals. I unwrapped the cover of both this battery and the genuine LG battery that came with the phone, and they are constructed differently. The genuine LG battery only has plastic on the top and bottom, while this has plastic on each side.