Maxximus batteries mean maximum efficiency and increased safety. The innovative use of aluminum casings combined with a honeycomb structure allows for a higher capacity. Maxximus also means more safety. Continuous monitoring of the operating temperature and voltage levels of individual cells prevents overheating of the battery and thus its destruction. The product is designed for the following phone models: Samsung: Equivalent EB-F1A2GBU GT-I9100 Galaxy S2. Batteries are designed for specific phone models and have different capacities and voltages depending on the model. We offer a 12-month warranty on Maxximus batteries.