2-Power phone batteries are random tested in-house as part of a total quality control programme to ensure compete safety. They are also supplied with 12 months warranty against manufacturing defect. Unlike some brands that use Chinese or even refurbished cells, 2-Power smartphone batteries only use high quality, brand new components. The 2-Power brand is committed to offer a solution for virtually all manufacturers on the market, irrespective of popularity. Our sales expertise allows your customer to stock the most popular batteries for your region or market. At 2-Power safety is a priority. We only use UL1642 certified Korean (Samsung) or Japanese (Panasonic, Sanyo) cells. All components are separated by insulated fire retardant paper. This prevents components touching & potentially short circuiting. In addition all cells have a rubber separator for increased safety. Flat metal connectors are used which have a low resistance, do not overheat & are less prone to damage. Box Contents 1x 2-Power Smartphone Battery 3.8V 1860m Ah