Galaxy S 3 is one of the most attractive phones by Samsung. This handset has a Li-Ion 2100 mAh battery that can run the phone up to 580 h (2G)/up to 390 h (LTE)/510 h (3G) in stand-by mode and give users up to 16 h (2G)/up to 11 h (3G) talk time. But still if you’re not satisfied with the battery life of Galaxy S III, then Samsung has come with a great solution. Samsung is going to release a 3,000 mAh extended battery to UK soon. Get the pricing details and other information below.